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1. Omicron infection following vaccination enhances a broad spectrum of immune responses dependent on infection history.

Author

Hornsby H, Nicols AR, Longet S, Liu C, Tomic A, Angyal A, Kronsteiner B, Tyerman JK, Tipton T, Zhang P, Gallis M, Supasa P, Selvaraj M, Abraham P, Neale I, Ali M, Barratt NA, Nell JM, Gustafsson L, Strickland S, Grouneva I, Rostron T, Moore SC, Hering LM, Dobson SL, Bibi S, Mongkolsapaya J, Lambe T, Wootton D, Hall V, Hopkins S, Dong T, Barnes E, Screaton G, Richter A, Turtle L, Rowland-Jones SL, Carroll M, Duncan CJA, Klenerman P, Dunachie SJ, Payne RP, and de Silva TI

Subjects
Humans, Immunity, Antibodies, Viral immunology, Antibodies, Neutralizing, Immunoglobulin A, T-Lymphocytes immunology, Immunity, Mucosal, Male, Female, Adult, COVID-19 immunology, COVID-19 virology, SARS-CoV-2 classification, COVID-19 Vaccines administration & dosage
Abstract

Pronounced immune escape by the SARS-CoV-2 Omicron variant has resulted in many individuals possessing hybrid immunity, generated through a combination of vaccination and infection. Concerns have been raised that omicron breakthrough infections in triple-vaccinated individuals result in poor induction of omicron-specific immunity, and that prior SARS-CoV-2 infection is associated with immune dampening. Taking a broad and comprehensive approach, we characterize mucosal and blood immunity to spike and non-spike antigens following BA.1/BA.2 infections in triple mRNA-vaccinated individuals, with and without prior SARS-CoV-2 infection. We find that most individuals increase BA.1/BA.2/BA.5-specific neutralizing antibodies following infection, but confirm that the magnitude of increase and post-omicron titres are higher in the infection-naive. In contrast, significant increases in nasal responses, including neutralizing activity against BA.5 spike, are seen regardless of infection history. Spike-specific T cells increase only in infection-naive vaccinees; however, post-omicron T cell responses are significantly higher in the previously-infected, who display a maximally induced response with a highly cytotoxic CD8+ phenotype following their 3 rd mRNA vaccine dose. Responses to non-spike antigens increase significantly regardless of prior infection status. These findings suggest that hybrid immunity induced by omicron breakthrough infections is characterized by significant immune enhancement that can help protect against future omicron variants., (© 2023. Springer Nature Limited.)

Published
2023
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2. Characterising within-hospitalSARS-CoV-2 transmission events using epidemiological and viral genomic data across two pandemic waves.

Author

Lindsey BB, Villabona-Arenas CJ, Campbell F, Keeley AJ, Parker MD, Shah DR, Parsons H, Zhang P, Kakkar N, Gallis M, Foulkes BH, Wolverson P, Louka SF, Christou S, State A, Johnson K, Raza M, Hsu S, Jombart T, Cori A, Evans CM, Partridge DG, Atkins KE, Hué S, and de Silva TI

Subjects
Bayes Theorem, Cohort Studies, Cross Infection epidemiology, Cross Infection transmission, Disease Outbreaks, Genomics, Health Personnel, Hospitals, Humans, United Kingdom epidemiology, COVID-19 epidemiology, COVID-19 transmission, Genome, Viral, Molecular Epidemiology, Pandemics, SARS-CoV-2 genetics
Abstract

Hospital outbreaks of COVID19 result in considerable mortality and disruption to healthcare services and yet little is known about transmission within this setting. We characterise within hospital transmission by combining viral genomic and epidemiological data using Bayesian modelling amongst 2181 patients and healthcare workers from a large UK NHS Trust. Transmission events were compared between Wave 1 (1st March to 25th J'uly 2020) and Wave 2 (30th November 2020 to 24th January 2021). We show that staff-to-staff transmissions reduced from 31.6% to 12.9% of all infections. Patient-to-patient transmissions increased from 27.1% to 52.1%. 40%-50% of hospital-onset patient cases resulted in onward transmission compared to 4% of community-acquired cases. Control measures introduced during the pandemic likely reduced transmissions between healthcare workers but were insufficient to prevent increasing numbers of patient-to-patient transmissions. As hospital-acquired cases drive most onward transmission, earlier identification of nosocomial cases will be required to break hospital transmission chains., (© 2022. The Author(s).)

Published
2022
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3. Genomic assessment of quarantine measures to prevent SARS-CoV-2 importation and transmission

Author

Aggarwal, Dinesh, Page, Andrew J., Schaefer, Ulf, Savva, George M., Myers, Richard, Volz, Erik, Ellaby, Nicholas, Platt, Steven, Groves, Natalie, Gallagher, Eileen, Tumelty, Niamh M., Le Viet, Thanh, Hughes, Gareth J., Chen, Cong, Turner, Charlie, Logan, Sophie, Harrison, Abbie, The COVID-19 Genomics UK (COG, Ash, Amy, Wise, Emma, Moore, Nathan, Mori, Matilde, Cortes, Nick, Lynch, Jessica, Kidd, Stephen, Fairley, Derek J., Curran, Tanya, McKenna, James P., Adams, Helen, Fraser, Christophe, Golubchik, Tanya, Bonsall, David, Hassan-Ibrahim, Mohammed O., Malone, Cassandra S., Cogger, Benjamin J., Wantoch, Michelle, Reynolds, Nicola, Warne, Ben, Maksimovic, Joshua, Spellman, Karla, McCluggage, Kathryn, John, Michaela, Beer, Robert, Afifi, Safiah, Morgan, Sian, Marchbank, Angela, Price, Anna, Kitchen, Christine, Gulliver, Huw, Merrick, Ian, Southgate, Joel, Guest, Martyn, Munn, Robert, Workman, Trudy, Connor, Thomas R., Fuller, William, Bresner, Catherine, Snell, Luke B., Patel, Amita, Charalampous, Themoula, Nebbia, Gaia, Batra, Rahul, Edgeworth, Jonathan, Robson, Samuel C., Beckett, Angela H., Aanensen, David M., Underwood, Anthony P., Yeats, Corin A., Abudahab, Khalil, Taylor, Ben E. W., Menegazzo, Mirko, Clark, Gemma, Smith, Wendy, Khakh, Manjinder, Fleming, Vicki M., Lister, Michelle M., Howson-Wells, Hannah C., Berry, Louise, Boswell, Tim, Joseph, Amelia, Willingham, Iona, Jones, Carl, Holmes, Christopher, Bird, Paul, Helmer, Thomas, Fallon, Karlie, Tang, Julian, Raviprakash, Veena, Campbell, Sharon, Sheriff, Nicola, Blakey, Victoria, Williams, Lesley-Anne, Loose, Matthew W., Holmes, Nadine, Moore, Christopher, Carlile, Matthew, Wright, Victoria, Sang, Fei, Debebe, Johnny, Coll, Francesc, Signell, Adrian W., Betancor, Gilberto, Wilson, Harry D., Eldirdiri, Sahar, Kenyon, Anita, Davis, Thomas, Pybus, Oliver G., du Plessis, Louis, Zarebski, Alex E., Raghwani, Jayna, Kraemer, Moritz U. G., Francois, Sarah, Attwood, Stephen W., Vasylyeva, Tetyana I., Zamudio, Marina Escalera, Gutierrez, Bernardo, Torok, M. Estee, Hamilton, William L., Goodfellow, Ian G., Hall, Grant, Jahun, Aminu S., Chaudhry, Yasmin, Hosmillo, Myra, Pinckert, Malte L., Georgana, Iliana, Moses, Samuel, Lowe, Hannah, Bedford, Luke, Moore, Jonathan, Stonehouse, Susanne, Fisher, Chloe L., Awan, Ali R., BoYes, John, Breuer, Judith, Harris, Kathryn A., Brown, Julianne R., Shah, Divya, Atkinson, Laura, Lee, Jack C. D., Storey, Nathaniel, Flaviani, Flavia, Alcolea-Medina, Adela, Williams, Rebecca, Vernet, Gabrielle, Chapman, Michael R., Levett, Lisa J., Heaney, Judith, Chatterton, Wendy, Pusok, Monika, Xu-McCrae, Li, Smith, Darren, Bashton, Matthew, Young, Greg, Holmes, Alison, Randell, Paul A., Cox, Alison, Madona, Pinglawathee, Bolt, Frances, Price, James, Mookerjee, Siddharth, Ragonnet-Cronin, Manon, Nascimento, Fabricia F., Jorgensen, David, Siveroni, Igor, Johnson, Rob, Boyd, Olivia, Geidelberg, Lily, Volz, Erik M., Rowan, Aileen, Taylor, Graham P., Smollett, Katherine L., Loman, Nicholas J., Quick, Joshua, McMurray, Claire, Stockton, Joanne, Nicholls, Sam, Rowe, Will, Poplawski, Radoslaw, McNally, Alan, Nunez, Rocio T. Martinez, Mason, Jenifer, Robinson, Trevor I., O’Toole, Elaine, Watts, Joanne, Breen, Cassie, Cowell, Angela, Sluga, Graciela, Machin, Nicholas W., Ahmad, Shazaad S. Y., George, Ryan P., Halstead, Fenella, Sivaprakasam, Venkat, Hogsden, Wendy, Illingworth, Chris J., Jackson, Chris, Thomson, Emma C., Shepherd, James G., Asamaphan, Patawee, Niebel, Marc O., Li, Kathy K., Shah, Rajiv N., Jesudason, Natasha G., Tong, Lily, Broos, Alice, Mair, Daniel, Nichols, Jenna, Carmichael, Stephen N., Nomikou, Kyriaki, Aranday-Cortes, Elihu, Johnson, Natasha, Starinskij, Igor, da Silva Filipe, Ana, Robertson, David L., Orton, Richard J., Hughes, Joseph, Vattipally, Sreenu, Singer, Joshua B., Nickbakhsh, Seema, Hale, Antony D., Macfarlane-Smith, Louissa R., Harper, Katherine L., Carden, Holli, Taha, Yusri, Payne, Brendan A. I., Burton-Fanning, Shirelle, Waugh, Sheila, Collins, Jennifer, Eltringham, Gary, Rushton, Steven, O’Brien, Sarah, Bradley, Amanda, Maclean, Alasdair, Mollett, Guy, Blacow, Rachel, Templeton, Kate E., McHugh, Martin P., Dewar, Rebecca, Wastenge, Elizabeth, Dervisevic, Samir, Stanley, Rachael, Meader, Emma J., Coupland, Lindsay, Smith, Louise, Graham, Clive, Barton, Edward, Padgett, Debra, Scott, Garren, Swindells, Emma, Greenaway, Jane, Nelson, Andrew, McCann, Clare, Yew, Wen Chyin, Andersson, Monique, Peto, Timothy, Justice, Anita, Eyre, David, Crook, Derrick, Sloan, Tim J., Duckworth, Nichola, Walsh, Sarah, Chauhan, Anoop J., Glaysher, Sharon, Bicknell, Kelly, Wyllie, Sarah, Elliott, Scott, Lloyd, Allyson, Impey, Robert, Levene, Nick, Monaghan, Lynn, Bradley, Declan T., Wyatt, Tim, Allara, Elias, Pearson, Clare, Osman, Husam, Bosworth, Andrew, Robinson, Esther, Muir, Peter, Vipond, Ian B., Hopes, Richard, Pymont, Hannah M., Hutchings, Stephanie, Curran, Martin D., Parmar, Surendra, Lackenby, Angie, Mbisa, Tamyo, Miah, Shahjahan, Bibby, David, Manso, Carmen, Hubb, Jonathan, Dabrera, Gavin, Ramsay, Mary, Bradshaw, Daniel, Thornton, Alicia, Lee, David, Williams, David, Harrison, Ian, Hartman, Hassan, Manesis, Nikos, Patel, Vineet, Bishop, Chloe, Chalker, Vicki, Ledesma, Juan, Twohig, Katherine A., Holden, Matthew T. G., Shaaban, Sharif, Birchley, Alec, Adams, Alexander, Davies, Alisha, Gaskin, Amy, Plimmer, Amy, Gatica-Wilcox, Bree, McKerr, Caoimhe, Moore, Catherine, Williams, Chris, Heyburn, David, De Lacy, Elen, Hilvers, Ember, Downing, Fatima, Shankar, Giri, Jones, Hannah, Asad, Hibo, Coombes, Jason, Watkins, Joanne, Evans, Johnathan M., Fina, Laia, Gifford, Laura, Gilbert, Lauren, Graham, Lee, Perry, Malorie, Morgan, Mari, Bull, Matthew, Cronin, Michelle, Pacchiarini, Nicole, Craine, Noel, Jones, Rachel, Howe, Robin, Corden, Sally, Rey, Sara, Kumziene-SummerhaYes, Sara, Taylor, Sarah, Cottrell, Simon, Jones, Sophie, Edwards, Sue, O’Grady, Justin, Mather, Alison E., Baker, David J., Rudder, Steven, Aydin, Alp, Kay, Gemma L., Trotter, Alexander J., Alikhan, Nabil-Fareed, de Oliveira Martins, Leonardo, Le-Viet, Thanh, Meadows, Lizzie, Casey, Anna, Ratcliffe, Liz, Simpson, David A., Molnar, Zoltan, Thompson, Thomas, Acheson, Erwan, Masoli, Jane A. H., Knight, Bridget A., Ellard, Sian, Auckland, Cressida, Jones, Christopher R., Mahungu, Tabitha W., Irish-Tavares, Dianne, Haque, Tanzina, Hart, Jennifer, Witele, Eric, Fenton, Melisa L., Dadrah, Ashok, Symmonds, Amanda, Saluja, Tranprit, Bourgeois, Yann, Scarlett, Garry P., Loveson, Katie F., Goudarzi, Salman, Fearn, Christopher, Cook, Kate, Dent, Hannah, Paul, Hannah, Partridge, David G., Raza, Mohammad, Evans, Cariad, Johnson, Kate, Liggett, Steven, Baker, Paul, Bonner, Stephen, Essex, Sarah, Lyons, Ronan A., Saeed, Kordo, Mahanama, Adhyana I. K., Samaraweera, Buddhini, Silveira, Siona, Pelosi, Emanuela, Wilson-Davies, Eleri, Williams, Rachel J., Kristiansen, Mark, Roy, Sunando, Williams, Charlotte A., Cotic, Marius, Bayzid, Nadua, Westhorpe, Adam P., Hartley, John A., Jannoo, Riaz, Lowe, Helen L., Karamani, Angeliki, Ensell, Leah, Prieto, Jacqui A., Jeremiah, Sarah, Grammatopoulos, Dimitris, Pandey, Sarojini, Berry, Lisa, Jones, Katie, Richter, Alex, Beggs, Andrew, Best, Angus, Percival, Benita, Mirza, Jeremy, Megram, Oliver, Mayhew, Megan, Crawford, Liam, Ashcroft, Fiona, Moles-Garcia, Emma, Cumley, Nicola, Smith, Colin P., Bucca, Giselda, Hesketh, Andrew R., Blane, Beth, Girgis, Sophia T., Leek, Danielle, Sridhar, Sushmita, Forrest, Sally, Cormie, Claire, Gill, Harmeet K., Dias, Joana, Higginson, Ellen E., Maes, Mailis, Young, Jamie, Kermack, Leanne M., Gupta, Ravi K., Ludden, Catherine, Peacock, Sharon J., Palmer, Sophie, Churcher, Carol M., Hadjirin, Nazreen F., Carabelli, Alessandro M., Brooks, Ellena, Smith, Kim S., Galai, Katerina, McManus, Georgina M., Ruis, Chris, Davidson, Rose K., Rambaut, Andrew, Williams, Thomas, Balcazar, Carlos E., Gallagher, Michael D., O’Toole, Áine, Rooke, Stefan, Hill, Verity, Williamson, Kathleen A., Stanton, Thomas D., Michell, Stephen L., Bewshea, Claire M., Temperton, Ben, Michelsen, Michelle L., Warwick-Dugdale, Joanna, Manley, Robin, Farbos, Audrey, Harrison, James W., Sambles, Christine M., Studholme, David J., Jeffries, Aaron R., Darby, Alistair C., Hiscox, Julian A., Paterson, Steve, Iturriza-Gomara, Miren, Jackson, Kathryn A., Lucaci, Anita O., Vamos, Edith E., Hughes, Margaret, Rainbow, Lucille, Eccles, Richard, Nelson, Charlotte, Whitehead, Mark, Turtle, Lance, Haldenby, Sam T., Gregory, Richard, Gemmell, Matthew, Wierzbicki, Claudia, Webster, Hermione J., de Silva, Thushan I., Smith, Nikki, Angyal, Adrienn, Lindsey, Benjamin B., Groves, Danielle C., Green, Luke R., Wang, Dennis, Freeman, Timothy M., Parker, Matthew D., Keeley, Alexander J., Parsons, Paul J., Tucker, Rachel M., Brown, Rebecca, Wyles, Matthew, Whiteley, Max, Zhang, Peijun, Gallis, Marta, Louka, Stavroula F., Constantinidou, Chrystala, Unnikrishnan, Meera, Ott, Sascha, Cheng, Jeffrey K. J., Bridgewater, Hannah E., Frost, Lucy R., Taylor-Joyce, Grace, Stark, Richard, Baxter, Laura, Alam, Mohammad T., Brown, Paul E., Cerda, Alberto C., Merrill, Tammy V., Wilson, Rebekah E., McClure, Patrick C., Chappell, Joseph G., Tsoleridis, Theocharis, Ball, Jonathan, Buck, David, Todd, John A., Green, Angie, Trebes, Amy, MacIntyre-Cockett, George, de Cesare, Mariateresa, Alderton, Alex, Amato, Roberto, Ariani, Cristina V., Beale, Mathew A., Beaver, Charlotte, Bellis, Katherine L., Betteridge, Emma, Bonfield, James, Danesh, John, Dorman, Matthew J., Drury, Eleanor, Farr, Ben W., Foulser, Luke, Goncalves, Sonia, Goodwin, Scott, Gourtovaia, Marina, Harrison, Ewan M., Jackson, David K., Jamrozy, Dorota, Johnston, Ian, Kane, Leanne, Kay, Sally, Keatley, Jon-Paul, Kwiatkowski, Dominic, Langford, Cordelia F., Lawniczak, Mara, Letchford, Laura, Livett, Rich, Lo, Stephanie, Martincorena, Inigo, McGuigan, Samantha, Nelson, Rachel, Palmer, Steve, Park, Naomi R., Patel, Minal, Prestwood, Liam, Puethe, Christoph, Quail, Michael A., Rajatileka, Shavanthi, Scott, Carol, Shirley, Lesley, Sillitoe, John, Chapman, Michael H. Spencer, Thurston, Scott A. J., Tonkin-Hill, Gerry, Weldon, Danni, Rajan, Diana, Bronner, Iraad F., Aigrain, Louise, Redshaw, Nicholas M., Lensing, Stefanie V., Davies, Robert, Whitwham, Andrew, Liddle, Jennifier, Lewis, Kevin, Tovar-Corona, Jaime M., Leonard, Steven, Durham, Jillian, Bassett, Andrew R., McCarthy, Shane, Moll, Robin J., James, Keith, Oliver, Karen, Makunin, Alex, Barrett, Jeff, Gunson, Rory N., Koshy, Cherian, Chand, Meera, Aggarwal, Dinesh [0000-0002-5938-8172], Page, Andrew J [0000-0001-6919-6062], Volz, Erik [0000-0001-6268-8937], Tumelty, Niamh M [0000-0002-9894-6034], Le Viet, Thanh [0000-0002-2106-8130], Hughes, Gareth J [0000-0002-3781-0117], Harrison, Abbie [0000-0002-7435-9994], Peacock, Sharon J [0000-0002-1718-2782], and Apollo - University of Cambridge Repository

Subjects
631/326/1762, 631/326/325/2483, General Physics and Astronomy, 45/23, Genome, Viral, General Biochemistry, Genetics and Molecular Biology, COVID-19 Genomics UK (COG-UK) Consortium, Communicable Diseases, Imported, Humans, 631/326/596/4130, Travel, Multidisciplinary, Science & Technology, 45, SARS-CoV-2, article, COVID-19, General Chemistry, Genomics, A300, C700, 692/700/478/174, B900, Multidisciplinary Sciences, England, Quarantine, Science & Technology - Other Topics, Health Impact Assessment, Contact Tracing, Travel-Related Illness, human activities
Abstract

Mitigation of SARS-CoV-2 transmission from international travel is a priority. We evaluated the effectiveness of travellers being required to quarantine for 14-days on return to England in Summer 2020. We identified 4,207 travel-related SARS-CoV-2 cases and their contacts, and identified 827 associated SARS-CoV-2 genomes. Overall, quarantine was associated with a lower rate of contacts, and the impact of quarantine was greatest in the 16-20 age-group. 186 SARS-CoV-2 genomes were sufficiently unique to identify travel-related clusters. Fewer genomically-linked cases were observed for index cases who returned from countries with quarantine requirement compared to countries with no quarantine requirement. This difference was explained by fewer importation events per identified genome for these cases, as opposed to fewer onward contacts per case. Overall, our study demonstrates that a 14-day quarantine period reduces, but does not completely eliminate, the onward transmission of imported cases, mainly by dissuading travel to countries with a quarantine requirement., We thank members of the COVID-19 Genomics Consortium UK and Test and Trace contact tracers for their contributions to generating the data used in this study. We thank the Sanger Covid Team for assisting with Samples and Logistics. We thank Sarah Mitchell from the Department of Plant Sciences, University of Cambridge, for direction on statistical analysis. DA is a Clinical PhD Fellow and gratefully supported by the Wellcome Trust (Grant number: 222903/Z/21/Z). EMH is supported by a UK Research and Innovation (UKRI) Fellowship: MR/S00291X/1. AJP, TLV, GMS gratefully acknowledge the support of the Biotechnology and Biological Sciences Research Council (BBSRC); their research was funded by the BBSRC Institute Strategic Programme Microbes in the Food Chain BB/R012504/1 and its constituent project BBS/E/F/000PR10352, also Quadram Institute Bioscience BBSRC funded Core Capability Grant (project number BB/CCG1860/1). The COVID-19 Genomics UK (COG-UK) Consortium is supported by funding from the Medical Research Council (MRC) part of UK Research & Innovation (UKRI), the National Institute of Health Research (NIHR) and Genome Research Limited, operating as the Wellcome Sanger Institute. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Published
2022

4. Altered subgenomic RNA abundance provides unique insight into SARS-CoV-2 B.1.1.7/Alpha variant infections

Author

Parker, Matthew D, Shaw, Hazel, Shehata, Ola M, Lindsey, Benjamin B, Shah, Dhruv R, Hsu, Sharon, Keeley, Alexander J, Partridge, David G, Leary, Shay, Cope, Alison, State, Amy, Johnson, Katie, Ali, Nasar, Raghei, Rasha, Heffer, Joe, Smith, Nikki, Zhang, Peijun, Gallis, Marta, Louka, Stavroula F, Hornsby, Hailey R, Alamri, Hatoon, Whiteley, Max, Foulkes, Benjamin H, Christou, Stella, Wolverson, Paige, Pohare, Manoj, Hansford, Samantha E, Green, Luke R, Evans, Cariad, Raza, Mohammad, Wang, Dennis, Firth, Andrew, Edgar, James, Gaudieri, Silvana, Mallal, Simon, COVID-19 Genomics UK (COG-UK) Consortium, Collins, Mark O, Peden, Andrew A, De Silva, Thushan I, Parker, Matthew D [0000-0003-2999-3870], Shaw, Hazel [0000-0003-1438-1089], Lindsey, Benjamin B [0000-0003-4227-2592], Shah, Dhruv R [0000-0002-6198-8273], Keeley, Alexander J [0000-0001-9386-1157], Partridge, David G [0000-0002-0417-2016], Heffer, Joe [0000-0001-8733-1117], Louka, Stavroula F [0000-0003-3000-3504], Hornsby, Hailey R [0000-0002-6657-9743], Christou, Stella [0000-0002-8287-788X], Wolverson, Paige [0000-0003-2709-0686], Pohare, Manoj [0000-0003-2272-9946], Hansford, Samantha E [0000-0003-3042-8748], Green, Luke R [0000-0002-2836-2041], Wang, Dennis [0000-0003-0068-1005], Firth, Andrew [0000-0002-7986-9520], Edgar, James [0000-0001-7903-8199], Collins, Mark O [0000-0002-7656-4975], Peden, Andrew A [0000-0003-0144-7712], de Silva, Thushan I [0000-0002-6498-9212], Apollo - University of Cambridge Repository, Stewart, Hazel [0000-0003-1438-1089], and Edgar, James R [0000-0001-7903-8199]

Subjects
SARS-CoV-2, article, COVID-19, Humans, RNA, 45/23, 631/114, 631/326/596/4130, 45/90
Abstract

B.1.1.7 lineage SARS-CoV-2 is more transmissible, leads to greater clinical severity, and results in modest reductions in antibody neutralization. Subgenomic RNA (sgRNA) is produced by discontinuous transcription of the SARS-CoV-2 genome. Applying our tool (periscope) to ARTIC Network Oxford Nanopore Technologies genomic sequencing data from 4400 SARS-CoV-2 positive clinical samples, we show that normalised sgRNA is significantly increased in B.1.1.7 (alpha) infections (n = 879). This increase is seen over the previous dominant lineage in the UK, B.1.177 (n = 943), which is independent of genomic reads, E cycle threshold and days since symptom onset at sampling. A noncanonical sgRNA which could represent ORF9b is found in 98.4% of B.1.1.7 SARS-CoV-2 infections compared with only 13.8% of other lineages, with a 16-fold increase in median sgRNA abundance. We demonstrate that ORF9b protein levels are increased 6-fold in B.1.1.7 compared to a B lineage virus in vitro. We hypothesise that increased ORF9b in B.1.1.7 is a direct consequence of a triple nucleotide mutation in nucleocapsid (28280:GAT > CAT, D3L) creating a transcription regulatory-like sequence complementary to a region 3' of the genomic leader. These findings provide a unique insight into the biology of B.1.1.7 and support monitoring of sgRNA profiles to evaluate emerging potential variants of concern.

Published
2022
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5. Genomic epidemiology of SARS-CoV-2 in a university outbreak setting and implications for public health planning

Author

Nickbakhsh, Sema, Hughes, Joseph, Christofidis, Nicolaos, Griffiths, Emily, Shaaban, Sharif, Enright, Jessica, Smollett, Katherine, Nomikou, Kyriaki, Palmalux, Natasha, Tong, Lily, Carmichael, Stephen, Sreenu, Vattipally B., Orton, Richard, Goldstein, Emily J., Tomb, Rachael M., Robson, Samuel C., Connor, Thomas R., Loman, Nicholas J., Golubchik, Tanya, Nunez, Rocio T. Martinez, Bonsall, David, Rambaut, Andrew, Snell, Luke B., Livett, Rich, Ludden, Catherine, Corden, Sally, Nastouli, Eleni, Nebbia, Gaia, Johnston, Ian, Lythgoe, Katrina, Torok, M. Estee, Goodfellow, Ian G., Prieto, Jacqui A., Saeed, Kordo, Jackson, David K., Houlihan, Catherine, Frampton, Dan, Hamilton, William L., Witney, Adam A., Bucca, Giselda, Pope, Cassie F., Moore, Catherine, Thomson, Emma C., Harrison, Ewan M., Smith, Colin P., Rogan, Fiona, Beckwith, Shaun M., Murray, Abigail, Singleton, Dawn, Eastick, Kirstine, Sheridan, Liz A., Randell, Paul, Jackson, Leigh M., Ariani, Cristina V., Gonçalves, Sónia, Fairley, Derek J., Loose, Matthew W., Watkins, Joanne, Moses, Samuel, Nicholls, Sam, Bull, Matthew, Amato, Roberto, Smith, Darren L., Aanensen, David M., Barrett, Jeffrey C., Aggarwal, Dinesh, Shepherd, James G., Curran, Martin D., Parmar, Surendra, Parker, Matthew D., Williams, Catryn, Glaysher, Sharon, Underwood, Anthony P., Bashton, Matthew, Pacchiarini, Nicole, Loveson, Katie F., Byott, Matthew, Carabelli, Alessandro M., Templeton, Kate E., de Silva, Thushan I., Wang, Dennis, Langford, Cordelia F., Sillitoe, John, Gunson, Rory N., Cottrell, Simon, O?Grady, Justin, Kwiatkowski, Dominic, Lillie, Patrick J., Cortes, Nicholas, Moore, Nathan, Thomas, Claire, Burns, Phillipa J., Mahungu, Tabitha W., Liggett, Steven, Beckett, Angela H., Holden, Matthew T. G., Levett, Lisa J., Osman, Husam, Hassan-Ibrahim, Mohammed O., Simpson, David A., Chand, Mrera, Gupta, Ravi K., Darby, Alistair C., Paterson, Steve, Pybus, Oliver G., Volz, Erik M., de Angelis, Daniela, Robertson, David L., Page, Andrew J., Martincorena, Inigo, Aigrain, Louise, Bassett, Andrew R., Wong, Nick, Taha, Yusri, Erkiert, Michelle J., Chapman, Michael H. Spencer, Dewar, Rebecca, McHugh, Martin P., Mookerjee, Siddharth, Aplin, Stephen, Harvey, Matthew, Sass, Thea, Umpleby, Helen, Wheeler, Helen, McKenna, James P., Warne, Ben, Taylor, Joshua F., Chaudhry, Yasmin, Izuagbe, Rhys, Jahun, Aminu S., Young, Gregory R., McMurray, Claire, McCann, Clare M., Nelson, Andrew, Elliott, Scott, Lowe, Hannah, Price, Anna, Crown, Matthew R., Rey, Sara, Roy, Sunando, Temperton, Ben, Hesketh, Andrew R., Laing, Kenneth G., Monahan, Irene M., Heaney, Judith, Pelosi, Emanuela, Silviera, Siona, Wilson-Davies, Eleri, Fryer, Helen, Adams, Helen, du Plessis, Louis, Johnson, Rob, Harvey, William T., Orton, Richard J., Spurgin, Lewis G., Bourgeois, Yann, Ruis, Chris, O?Toole, Áine, Gourtovaia, Marina, Sanderson, Theo, Fraser, Christophe, Edgeworth, Jonathan, Breuer, Judith, Michell, Stephen L., Todd, John A., John, Michaela, Buck, David, Gajee, Kavitha, Kay, Gemma L., Peacock, Sharon J., Heyburn, David, Kitchman, Katie, McNally, Alan, Pritchard, David T., Dervisevic, Samir, Muir, Peter, Robinson, Esther, Vipond, Barry B., Ramadan, Newara A., Jeanes, Christopher, Weldon, Danni, Catalan, Jana, Jones, Neil, da Silva Filipe, Ana, Williams, Chris, Fuchs, Marc, Miskelly, Julia, Jeffries, Aaron R., Oliver, Karen, Park, Naomi R., Ash, Amy, Koshy, Cherian, Barrow, Magdalena, Buchan, Sarah L., Mantzouratou, Anna, Clark, Gemma, Holmes, Christopher W., Campbell, Sharon, Davis, Thomas, Tan, Ngee Keong, Brown, Julianne R., Harris, Kathryn A., Kidd, Stephen P., Grant, Paul R., Xu-McCrae, Li, Cox, Alison, Madona, Pinglawathee, Pond, Marcus, Randell, Paul A., Withell, Karen T., Williams, Cheryl, Graham, Clive, Denton-Smith, Rebecca, Swindells, Emma, Turnbull, Robyn, Sloan, Tim J., Bosworth, Andrew, Hutchings, Stephanie, Pymont, Hannah M., Casey, Anna, Ratcliffe, Liz, Jones, Christopher R., Knight, Bridget A., Haque, Tanzina, Hart, Jennifer, Irish-Tavares, Dianne, Witele, Eric, Mower, Craig, Watson, Louisa K., Collins, Jennifer, Eltringham, Gary, Crudgington, Dorian, Macklin, Ben, Iturriza-Gomara, Miren, Lucaci, Anita O., McClure, Patrick C., Carlile, Matthew, Holmes, Nadine, Moore, Christopher, Storey, Nathaniel, Rooke, Stefan, Yebra, Gonzalo, Craine, Noel, Perry, Malorie, Alikhan, Nabil-Fareed, Bridgett, Stephen, Cook, Kate F., Fearn, Christopher, Goudarzi, Salman, Lyons, Ronan A., Williams, Thomas, Haldenby, Sam T., Durham, Jillian, Leonard, Steven, Davies, Robert M., Batra, Rahul, Blane, Beth, Spyer, Moira J., Smith, Perminder, Yavus, Mehmet, Williams, Rachel J., Mahanama, Adhyana I. K., Samaraweera, Buddhini, Girgis, Sophia T., Hansford, Samantha E., Green, Angie, Beaver, Charlotte, Bellis, Katherine L., Dorman, Matthew J., Kay, Sally, Prestwood, Liam, Rajatileka, Shavanthi, Quick, Joshua, Poplawski, Radoslaw, Reynolds, Nicola, Mack, Andrew, Morriss, Arthur, Whalley, Thomas, Patel, Bindi, Georgana, Iliana, Hosmillo, Myra, Pinckert, Malte L., Stockton, Joanne, Henderson, John H., Hollis, Amy, Stanley, William, Yew, Wen C., Myers, Richard, Thornton, Alicia, Adams, Alexander, Annett, Tara, Asad, Hibo, Birchley, Alec, Coombes, Jason, Evans, Johnathan M., Fina, Laia, Gatica-Wilcox, Bree, Gilbert, Lauren, Graham, Lee, Hey, Jessica, Hilvers, Ember, Jones, Sophie, Jones, Hannah, Kumziene-Summerhayes, Sara, McKerr, Caoimhe, Powell, Jessica, Pugh, Georgia, Taylor, Sarah, Trotter, Alexander J., Williams, Charlotte A., Kermack, Leanne M., Foulkes, Benjamin H., Gallis, Marta, Hornsby, Hailey R., Louka, Stavroula F., Pohare, Manoj, Wolverson, Paige, Zhang, Peijun, MacIntyre-Cockett, George, Trebes, Amy, Moll, Robin J., Ferguson, Lynne, Maclean, Alasdair, Tomb, Rachael, Starinskij, Igor, Thomson, Laura, Southgate, Joel, Kraemer, Moritz U. G., Raghwani, Jayna, Zarebski, Alex E., Boyd, Olivia, Geidelberg, Lily, Illingworth, Chris J., Jackson, Chris, Pascall, David, Vattipally, Sreenu, Freeman, Timothy M., Hsu, Sharon N., Lindsey, Benjamin B., James, Keith, Lewis, Kevin, Tonkin-Hill, Gerry, Tovar-Corona, Jaime M., Cox, MacGregor, Abudahab, Khalil, Menegazzo, Mirko, Taylor, Ben E. W., Yeats, Corin A., Mukaddas, Afrida, Wright, Derek W., de Oliveira Martins, Leonardo, Colquhoun, Rachel, Hill, Verity, Jackson, Ben, McCrone, J. T., Medd, Nathan, Scher, Emily, Keatley, Jon-Paul, Curran, Tanya, Morgan, Sian, Maxwell, Patrick, Smith, Ken, Eldirdiri, Sahar, Kenyon, Anita, Holmes, Alison H., Price, James R., Wyatt, Tim, Mather, Alison E., SkvortsovHartley, Timofey John A., Guest, Martyn, Kitchen, Christine, Merrick, Ian, Munn, Robert, Bertolusso, Beatrice, Lynch, Jessica, Vernet, Gabrielle, Kirk, Stuart, Wastnedge, Elizabeth, Stanley, Rachael, Idle, Giles, Bradley, Declan T., Poyner, Jennifer, Mori, Matilde, Jones, Owen, Wright, Victoria, Brooks, Ellena, Churcher, Carol M., Fragakis, Mireille, Galai, Katerina, Jermy, Andrew, Judges, Sarah, McManus, Georgina M., Smith, Kim S., Westwick, Elaine, Attwood, Stephen W., Bolt, Frances, Davies, Alisha, De Lacy, Elen, Downing, Fatima, Edwards, Sue, Meadows, Lizzie, Jeremiah, Sarah, Smith, Nikki, Foulser, Luke, Charalampous, Themoula, Patel, Amita, Berry, Louise, Boswell, Tim, Fleming, Vicki M., Howson-Wells, Hannah C., Joseph, Amelia, Khakh, Manjinder, Lister, Michelle M., Bird, Paul W., Fallon, Karlie, Helmer, Thomas, McMurray, Claire L., Odedra, Mina, Shaw, Jessica, Tang, Julian W., Willford, Nicholas J., Blakey, Victoria, Raviprakash, Veena, Sheriff, Nicola, Williams, Lesley-Anne, Feltwell, Theresa, Bedford, Luke, Cargill, James S., Hughes, Warwick, Moore, Jonathan, Stonehouse, Susanne, Atkinson, Laura, Lee, Jack C. D., Shah, Divya, Alcolea-Medina, Adela, Ohemeng-Kumi, Natasha, Ramble, John, Sehmi, Jasveen, Williams, Rebecca, Chatterton, Wendy, Pusok, Monika, Everson, William, Castigador, Anibolina, Macnaughton, Emily, El Bouzidi, Kate, Lampejo, Temi, Sudhanva, Malur, Breen, Cassie, Sluga, Graciela, Ahmad, Shazaad S. Y., George, Ryan P., Machin, Nicholas W., Binns, Debbie, James, Victoria, Blacow, Rachel, Coupland, Lindsay, Smith, Louise, Barton, Edward, Padgett, Debra, Scott, Garren, Cross, Aidan, Mirfenderesky, Mariyam, Greenaway, Jane, Cole, Kevin, Clarke, Phillip, Duckworth, Nichola, Walsh, Sarah, Bicknell, Kelly, Impey, Robert, Wyllie, Sarah, Hopes, Richard, Bishop, Chloe, Chalker, Vicki, Harrison, Ian, Gifford, Laura, Molnar, Zoltan, Auckland, Cressida, Evans, Cariad, Johnson, Kate, Partridge, David G., Raza, Mohammad, Baker, Paul, Bonner, Stephen, Essex, Sarah, Murray, Leanne J., Lawton, Andrew I., Burton-Fanning, Shirelle, Payne, Brendan A. I., Waugh, Sheila, Gomes, Andrea N., Kimuli, Maimuna, Murray, Darren R., Ashfield, Paula, Dobie, Donald, Ashford, Fiona, Best, Angus, Crawford, Liam, Cumley, Nicola, Mayhew, Megan, Megram, Oliver, Mirza, Jeremy, Moles-Garcia, Emma, Percival, Benita, Driscoll, Megan, Ensell, Leah, Lowe, Helen L., Maftei, Laurentiu, Mondani, Matteo, Chaloner, Nicola J., Cogger, Benjamin J., Easton, Lisa J., Huckson, Hannah, Lewis, Jonathan, Lowdon, Sarah, Malone, Cassandra S., Munemo, Florence, Mutingwende, Manasa, Nicodemi, Roberto, Podplomyk, Olga, Somassa, Thomas, Beggs, Andrew, Richter, Alex, Cormie, Claire, Dias, Joana, Forrest, Sally, Higginson, Ellen E., Maes, Mailis, Young, Jamie, Davidson, Rose K., Jackson, Kathryn A., Turtle, Lance, Keeley, Alexander J., Ball, Jonathan, Byaruhanga, Timothy, Chappell, Joseph G., Dey, Jayasree, Hill, Jack D., Park, Emily J., Fanaie, Arezou, Hilson, Rachel A., Yaze, Geraldine, Lo, Stephanie, Afifi, Safiah, Beer, Robert, Maksimovic, Joshua, McCluggage, Kathryn, Spellman, Karla, Bresner, Catherine, Fuller, William, Marchbank, Angela, Workman, Trudy, Shelest, Ekaterina, Debebe, Johnny, Sang, Fei, Zamudio, Marina Escalera, Francois, Sarah, Gutierrez, Bernardo, Vasylyeva, Tetyana I., Flaviani, Flavia, Ragonnet-Cronin, Manon, Smollett, Katherine L., Broos, Alice, Mair, Daniel, Nichols, Jenna, Tsatsani, Ioulia, O?Brien, Sarah, Rushton, Steven, Sanderson, Roy, Perkins, Jon, Cotton, Seb, Gallagher, Abbie, Allara, Elias, Pearson, Clare, Bibby, David, Dabrera, Gavin, Ellaby, Nicholas, Gallagher, Eileen, Hubb, Jonathan, Lackenby, Angie, Lee, David, Manesis, Nikos, Mbisa, Tamyo, Platt, Steven, Twohig, Katherine A., Morgan, Mari, Aydin, Alp, Baker, David J., Foster-Nyarko, Ebenezer, Prosolek, Sophie J., Rudder, Steven, Baxter, Chris, Carvalho, Sílvia F., Lavin, Deborah, Mariappan, Arun, Radulescu, Clara, Singh, Aditi, Tang, Miao, Morcrette, Helen, Bayzid, Nadua, Cotic, Marius, Balcazar, Carlos E., Gallagher, Michael D., Maloney, Daniel, Stanton, Thomas D., Williamson, Kathleen A., Manley, Robin, Michelsen, Michelle L., Sambles, Christine M., Studholme, David J., Warwick-Dugdale, Joanna, Eccles, Richard, Gemmell, Matthew, Gregory, Richard, Hughes, Margaret, Nelson, Charlotte, Rainbow, Lucille, Vamos, Edith E., Webster, Hermione J., Whitehead, Mark, Wierzbicki, Claudia, Angyal, Adrienn, Green, Luke R., Whiteley, Max, Betteridge, Emma, Bronner, Iraad F., Farr, Ben W., Goodwin, Scott, Lensing, Stefanie V., McCarthy, Shane A., Quail, Michael A., Rajan, Diana, Redshaw, Nicholas M., Scott, Carol, Shirley, Lesley, Thurston, Scott A. J., Rowe, Will, Gaskin, Amy, Le-Viet, Thanh, Bonfield, James, Liddle, Jennifier, Whitwham, Andrew, Templeton, Kate, Milosevic, Catriona, Thomson, Emma, Illingworth, Christopher J. R., Smith-Palmer, Alison, Nickbakhsh, Sema [0000-0001-9543-7536], Sreenu, Vattipally B [0000-0001-6673-4697], Orton, Richard [0000-0002-3389-4325], Thomson, Emma [0000-0003-1482-0889], Robertson, David L [0000-0001-6338-0221], Apollo - University of Cambridge Repository, University of St Andrews. St Andrews Bioinformatics Unit, University of St Andrews. Infection and Global Health Division, University of St Andrews. Biomedical Sciences Research Complex, and University of St Andrews. School of Medicine

Subjects
631/114/739, Multidisciplinary, Universities, SARS-CoV-2, article, COVID-19, QH426 Genetics, 3rd-DAS, Genomics, C400, 692/700/478/174, United States, Disease Outbreaks, B900, Health Planning, SDG 3 - Good Health and Well-being, 692/699/255/2514, 631/114/2397, RA0421, RA0421 Public health. Hygiene. Preventive Medicine, Humans, 631/181/457, QH426
Abstract

Funding: The CVR authors are supported by the Medical Research Council [MC_UU_12014/12 and MC_UU_12018/12]. COG-UK is supported by funding from the Medical Research Council (MRC) part of UK Research & Innovation (UKRI), the National Institute of Health Research (NIHR) [Grant code: MC_PC_19027], and Genome Research Limited, operating as the Wellcome Sanger Institute. Whole genome sequencing of SARS-CoV-2 has occurred at an unprecedented scale, and can be exploited for characterising outbreak risks at the fine-scale needed to inform control strategies. One setting at continued risk of COVID-19 outbreaks are higher education institutions, associated with student movements at the start of term, close living conditions within residential halls, and high social contact rates. Here we analysed SARS-CoV-2 whole genome sequences in combination with epidemiological data to investigate a large cluster of student cases associated with University of Glasgow accommodation in autumn 2020, Scotland. We identified 519 student cases of SARS-CoV-2 infection associated with this large cluster through contact tracing data, with 30% sequencing coverage for further analysis. We estimated at least 11 independent introductions of SARS-CoV-2 into the student population, with four comprising the majority of detected cases and consistent with separate outbreaks. These four outbreaks were curtailed within a week following implementation of control measures. The impact of student infections on the local community was short-term despite an underlying increase in community infections. Our study highlights the need for context-specific information in the formation of public health policy for higher educational settings. Publisher PDF

Published
2022

6. COVID-19 due to the B.1.617.2 (Delta) variant compared to B.1.1.7 (Alpha) variant of SARS-CoV-2: a prospective observational cohort study

Author

Kläser, Kerstin, Molteni, Erika, Graham, Mark, Canas, Liane S., Österdahl, Marc F., Antonelli, Michela, Chen, Liyuan, Deng, Jie, Murray, Benjamin, Kerfoot, Eric, Wolf, Jonathan, May, Anna, Fox, Ben, Capdevila, Joan, Aanensen, David M., Abudahab, Khalil, Adams, Helen, Adams, Alexander, Afifi, Safiah, Aggarwal, Dinesh, Ahmad, Shazaad S. Y., Aigrain, Louise, Alcolea-Medina, Adela, Alikhan, Nabil-Fareed, Allara, Elias, Amato, Roberto, Angyal, Adrienn, Annett, Tara, Aplin, Stephen, Ariani, Cristina V., Asad, Hibo, Ash, Amy, Ashfield, Paula, Ashford, Fiona, Atkinson, Laura, Attwood, Stephen W., Auckland, Cressida, Aydin, Alp, Baker, David J., Baker, Paul, Balcazar, Carlos E., Ball, Jonathan, Barrett, Jeffrey C., Barrow, Magdalena, Barton, Edward, Bashton, Matthew, Bassett, Andrew R., Batra, Rahul, Baxter, Chris, Bayzid, Nadua, Beaver, Charlotte, Beckett, Angela H., Beckwith, Shaun M., Bedford, Luke, Beer, Robert, Beggs, Andrew, Bellis, Katherine L., Berry, Louise, Bertolusso, Beatrice, Best, Angus, Betteridge, Emma, Bibby, David, Bicknell, Kelly, Binns, Debbie, Birchley, Alec, Bird, Paul W., Bishop, Chloe, Blacow, Rachel, Blakey, Victoria, Blane, Beth, Bolt, Frances, Bonfield, James, Bonner, Stephen, Bonsall, David, Boswell, Tim, Bosworth, Andrew, Bourgeois, Yann, Boyd, Olivia, Bradley, Declan T., Breen, Cassie, Bresner, Catherine, Breuer, Judith, Bridgett, Stephen, Bronner, Iraad F., Brooks, Ellena, Broos, Alice, Brown, Julianne R., Bucca, Giselda, Buchan, Sarah L., Buck, David, Bull, Matthew, Burns, Phillipa J., Burton-Fanning, Shirelle, Byaruhanga, Timothy, Byott, Matthew, Campbell, Sharon, Carabelli, Alessandro M., Cargill, James S., Carlile, Matthew, Carvalho, Sílvia F., Casey, Anna, Castigador, Anibolina, Catalan, Jana, Chalker, Vicki, Chaloner, Nicola J., Chand, Meera, Chappell, Joseph G., Charalampous, Themoula, Chatterton, Wendy, Chaudhry, Yasmin, Churcher, Carol M., Clark, Gemma, Clarke, Phillip, Cogger, Benjamin J., Cole, Kevin, Collins, Jennifer, Colquhoun, Rachel, Connor, Thomas R., Cook, Kate F., Coombes, Jason, Corden, Sally, Cormie, Claire, Cortes, Nicholas, Cotic, Marius, Cotton, Seb, Cottrell, Simon, Coupland, Lindsay, Cox, MacGregor, Cox, Alison, Craine, Noel, Crawford, Liam, Cross, Aidan, Crown, Matthew, Crudgington, Dorian, Cumley, Nicola, Curran, Tanya, Curran, Martin D., da Silva Filipe, Ana, Dabrera, Gavin, Darby, Alistair C., Davidson, Rose K., Davies, Alisha, Davies, Robert M., Davis, Thomas, de Angelis, Daniela, De Lacy, Elen, de Oliveira Martins, Leonardo, de Silva, Thushan I., Debebe, Johnny, Denton-Smith, Rebecca, Dervisevic, Samir, Dewar, Rebecca, Dey, Jayasree, Dias, Joana, Dobie, Donald, Dorman, Matthew J., Downing, Fatima, Driscoll, Megan, du Plessis, Louis, Duckworth, Nichola, Durham, Jillian, Eastick, Kirstine, Easton, Lisa J., Eccles, Richard, Edgeworth, Jonathan, Edwards, Sue, Bouzidi, Kate El, Eldirdiri, Sahar, Ellaby, Nicholas, Elliott, Scott, Eltringham, Gary, Ensell, Leah, Erkiert, Michelle J., Zamudio, Marina Escalera, Essex, Sarah, Evans, Johnathan M., Evans, Cariad, Everson, William, Fairley, Derek J., Fallon, Karlie, Fanaie, Arezou, Farr, Ben W., Fearn, Christopher, Feltwell, Theresa, Ferguson, Lynne, Fina, Laia, Flaviani, Flavia, Fleming, Vicki M., Forrest, Sally, Foster-Nyarko, Ebenezer, Foulkes, Benjamin H., Foulser, Luke, Fragakis, Mireille, Frampton, Dan, Francois, Sarah, Fraser, Christophe, Freeman, Timothy M., Fryer, Helen, Fuchs, Marc, Fuller, William, Gajee, Kavitha, Galai, Katerina, Gallagher, Abbie, Gallagher, Eileen, Gallagher, Michael D., Gallis, Marta, Gaskin, Amy, Gatica-Wilcox, Bree, Geidelberg, Lily, Gemmell, Matthew, Georgana, Iliana, George, Ryan P., Gifford, Laura, Gilbert, Lauren, Girgis, Sophia T., Glaysher, Sharon, Goldstein, Emily J., Golubchik, Tanya, Gomes, Andrea N., Gonçalves, Sónia, Goodfellow, Ian G., Goodwin, Scott, Goudarzi, Salman, Gourtovaia, Marina, Graham, Clive, Graham, Lee, Grant, Paul R., Green, Luke R., Green, Angie, Greenaway, Jane, Gregory, Richard, Guest, Martyn, Gunson, Rory N., Gupta, Ravi K., Gutierrez, Bernardo, Haldenby, Sam T., Hamilton, William L., Hansford, Samantha E., Haque, Tanzina, Harris, Kathryn A., Harrison, Ian, Harrison, Ewan M., Hart, Jennifer, Hartley, John A., Harvey, William T., Harvey, Matthew, Hassan-Ibrahim, Mohammed O., Heaney, Judith, Helmer, Thomas, Henderson, John, Hesketh, Andrew R., Hey, Jessica, Heyburn, David, Higginson, Ellen E., Hill, Verity, Hill, Jack D., Hilson, Rachel A., Hilvers, Ember, Holden, Matthew T. G., Hollis, Amy, Holmes, Christopher W., Holmes, Nadine, Holmes, Alison H., Hopes, Richard, Hornsby, Hailey R., Hosmillo, Myra, Houlihan, Catherine, Howson-Wells, Hannah C., Hsu, Sharon N., Hubb, Jonathan, Huckson, Hannah, Hughes, Warwick, Hughes, Joseph, Hughes, Margaret, Hutchings, Stephanie, Idle, Giles, Illingworth, Chris J., Impey, Robert, Irish-Tavares, Dianne, Iturriza-Gomara, Miren, Izuagbe, Rhys, Jackson, Chris, Jackson, Ben, Jackson, Leigh M., Jackson, Kathryn A., Jackson, David K., Jahun, Aminu S., James, Victoria, James, Keith, Jeanes, Christopher, Jeffries, Aaron R., Jeremiah, Sarah, Jermy, Andrew, John, Michaela, Johnson, Rob, Johnson, Kate, Johnston, Ian, Jones, Owen, Jones, Sophie, Jones, Hannah, Jones, Christopher R., Jones, Neil, Joseph, Amelia, Judges, Sarah, Kay, Gemma L., Kay, Sally, Keatley, Jon-Paul, Keeley, Alexander J., Kenyon, Anita, Kermack, Leanne M., Khakh, Manjinder, Kidd, Stephen P., Kimuli, Maimuna, Kirk, Stuart, Kitchen, Christine, Kitchman, Katie, Knight, Bridget A., Koshy, Cherian, Kraemer, Moritz U. G., Kumziene-Summerhayes, Sara, Kwiatkowski, Dominic, Lackenby, Angie, Laing, Kenneth G., Lampejo, Temi, Langford, Cordelia F., Lavin, Deborah, Lawton, Andrew I., Lee, Jack C. D., Lee, David, Lensing, Stefanie V., Leonard, Steven, Levett, Lisa J., Le-Viet, Thanh, Lewis, Jonathan, Lewis, Kevin, Liddle, Jennifier, Liggett, Steven, Lillie, Patrick J., Lindsey, Benjamin B., Lister, Michelle M., Livett, Rich, Lo, Stephanie, Loman, Nicholas J., Loose, Matthew W., Louka, Stavroula F., Loveson, Katie F., Lowdon, Sarah, Lowe, Hannah, Lowe, Helen L., Lucaci, Anita O., Ludden, Catherine, Lynch, Jessica, Lyons, Ronan A., Lythgoe, Katrina, Machin, Nicholas W., MacIntyre-Cockett, George, Mack, Andrew, Macklin, Ben, Maclean, Alasdair, Macnaughton, Emily, Madona, Pinglawathee, Maes, Mailis, Maftei, Laurentiu, Mahanama, Adhyana I. K., Mahungu, Tabitha W., Mair, Daniel, Maksimovic, Joshua, Malone, Cassandra S., Maloney, Daniel, Manesis, Nikos, Manley, Robin, Mantzouratou, Anna, Marchbank, Angela, Mariappan, Arun, Martincorena, Inigo, Nunez, Rocio T. Martinez, Mather, Alison E., Maxwell, Patrick, Mayhew, Megan, Mbisa, Tamyo, McCann, Clare, McCarthy, Shane A., McCluggage, Kathryn, McClure, Patrick C., McCrone, J. T., McHugh, Martin P., McKenna, James P., McKerr, Caoimhe, McManus, Georgina M., McMurray, Claire L., McMurray, Claire, McNally, Alan, Meadows, Lizzie, Medd, Nathan, Megram, Oliver, Menegazzo, Mirko, Merrick, Ian, Michell, Stephen L., Michelsen, Michelle L., Mirfenderesky, Mariyam, Mirza, Jeremy, Miskelly, Julia, Moles-Garcia, Emma, Moll, Robin J., Molnar, Zoltan, Monahan, Irene M., Mondani, Matteo, Mookerjee, Siddharth, Moore, Christopher, Moore, Jonathan, Moore, Nathan, Moore, Catherine, Morcrette, Helen, Morgan, Sian, Morgan, Mari, Mori, Matilde, Morriss, Arthur, Moses, Samuel, Mower, Craig, Muir, Peter, Mukaddas, Afrida, Munemo, Florence, Munn, Robert, Murray, Abigail, Murray, Leanne J., Murray, Darren R., Mutingwende, Manasa, Myers, Richard, Nastouli, Eleni, Nebbia, Gaia, Nelson, Andrew, Nelson, Charlotte, Nicholls, Sam, Nichols, Jenna, Nicodemi, Roberto, Nomikou, Kyriaki, O’Grady, Justin, O’Brien, Sarah, Odedra, Mina, Ohemeng-Kumi, Natasha, Oliver, Karen, Orton, Richard J., Osman, Husam, O’Toole, Áine, Pacchiarini, Nicole, Padgett, Debra, Page, Andrew J., Park, Emily J., Park, Naomi R., Parker, Matthew D., Parmar, Surendra, Partridge, David G., Pascall, David, Patel, Amita, Patel, Bindi, Paterson, Steve, Payne, Brendan A. I., Peacock, Sharon J., Pearson, Clare, Pelosi, Emanuela, Percival, Benita, Perkins, Jon, Perry, Malorie, Pinckert, Malte L., Platt, Steven, Podplomyk, Olga, Pohare, Manoj, Pond, Marcus, Pope, Cassie F., Poplawski, Radoslaw, Powell, Jessica, Poyner, Jennifer, Prestwood, Liam, Price, Anna, Price, James R., Prieto, Jacqui A., Pritchard, David T., Prosolek, Sophie J., Pugh, Georgia, Pusok, Monika, Pybus, Oliver G., Pymont, Hannah M., Quail, Michael A., Quick, Joshua, Radulescu, Clara, Raghwani, Jayna, Ragonnet-Cronin, Manon, Rainbow, Lucille, Rajan, Diana, Rajatileka, Shavanthi, Ramadan, Newara A., Rambaut, Andrew, Ramble, John, Randell, Paul A., Randell, Paul, Ratcliffe, Liz, Raviprakash, Veena, Raza, Mohammad, Redshaw, Nicholas M., Rey, Sara, Reynolds, Nicola, Richter, Alex, Robertson, David L., Robinson, Esther, Robson, Samuel C., Rogan, Fiona, Rooke, Stefan, Rowe, Will, Roy, Sunando, Rudder, Steven, Ruis, Chris, Rushton, Steven, Ryan, Felicity, Saeed, Kordo, Samaraweera, Buddhini, Sambles, Christine M., Sanderson, Roy, Sanderson, Theo, Sang, Fei, Sass, Thea, Scher, Emily, Scott, Garren, Scott, Carol, Sehmi, Jasveen, Shaaban, Sharif, Shah, Divya, Shaw, Jessica, Shelest, Ekaterina, Shepherd, James G., Sheridan, Liz A., Sheriff, Nicola, Shirley, Lesley, Sillitoe, John, Silviera, Siona, Simpson, David A., Singh, Aditi, Singleton, Dawn, Skvortsov, Timofey, Sloan, Tim J., Sluga, Graciela, Smith, Ken, Smith, Kim S., Smith, Perminder, Smith, Darren, Smith, Louise, Smith, Colin P., Smith, Nikki, Smollett, Katherine L., Snell, Luke B., Somassa, Thomas, Southgate, Joel, Spellman, Karla, Chapman, Michael H. Spencer, Spurgin, Lewis G., Spyer, Moira J., Stanley, Rachael, Stanley, William, Stanton, Thomas D., Starinskij, Igor, Stockton, Joanne, Stonehouse, Susanne, Storey, Nathaniel, Studholme, David J., Sudhanva, Malur, Swindells, Emma, Taha, Yusri, Tan, Ngee Keong, Tang, Julian W., Tang, Miao, Taylor, Ben E. W., Taylor, Joshua F., Taylor, Sarah, Temperton, Ben, Templeton, Kate E., Thomas, Claire, Thomson, Laura, Thomson, Emma C., Thornton, Alicia, Thurston, Scott A. J., Todd, John A., Tomb, Rachael, Tong, Lily, Tonkin-Hill, Gerry, Torok, M. Estee, Tovar-Corona, Jaime M., Trebes, Amy, Trotter, Alexander J., Tsatsani, Ioulia, Turnbull, Robyn, Turtle, Lance, Twohig, Katherine A., Umpleby, Helen, Underwood, Anthony P., Vamos, Edith E., Vasylyeva, Tetyana I., Vattipally, Sreenu, Vernet, Gabrielle, Vipond, Barry B., Volz, Erik M., Walsh, Sarah, Wang, Dennis, Warne, Ben, Warwick-Dugdale, Joanna, Wastnedge, Elizabeth, Watkins, Joanne, Watson, Louisa K., Waugh, Sheila, Webster, Hermione J., Weldon, Danni, Westwick, Elaine, Whalley, Thomas, Wheeler, Helen, Whitehead, Mark, Whiteley, Max, Whitwham, Andrew, Wierzbicki, Claudia, Willford, Nicholas J., Williams, Lesley-Anne, Williams, Rebecca, Williams, Cheryl, Williams, Chris, Williams, Charlotte A., Williams, Rachel J., Williams, Thomas, Williams, Catryn, Williamson, Kathleen A., Wilson-Davies, Eleri, Witele, Eric, Withell, Karen T., Witney, Adam A., Wolverson, Paige, Wong, Nick, Workman, Trudy, Wright, Victoria, Wright, Derek W., Wyatt, Tim, Wyllie, Sarah, Xu-McCrae, Li, Yavus, Mehmet, Yaze, Geraldine, Yeats, Corin A., Yebra, Gonzalo, Yew, Wen Chyin, Young, Greg, Young, Jamie, Zarebski, Alex E., Zhang, Peijun, Modat, Marc, Hammers, Alexander, Spector, Tim D., Steves, Claire J., Sudre, Carole H., Ourselin, Sebastien, Duncan, Emma L., Radiology and nuclear medicine, Peacock, Sharon [0000-0002-1718-2782], and Apollo - University of Cambridge Repository

Subjects
B900, Adult, Multidisciplinary, SARS-CoV-2, SARS-CoV-2/genetics, Reinfection, B100, COVID-19, Humans, C500, Prospective Studies, Hepatitis D, COVID-19/epidemiology
Abstract

The Delta (B.1.617.2) variant was the predominant UK circulating SARS-CoV-2 strain between May and December 2021. How Delta infection compares with previous variants is unknown. This prospective observational cohort study assessed symptomatic adults participating in the app-based COVID Symptom Study who tested positive for SARS-CoV-2 from May 26 to July 1, 2021 (Delta overwhelmingly the predominant circulating UK variant), compared (1:1, age- and sex-matched) with individuals presenting from December 28, 2020 to May 6, 2021 (Alpha (B.1.1.7) the predominant variant). We assessed illness (symptoms, duration, presentation to hospital) during Alpha- and Delta-predominant timeframes; and transmission, reinfection, and vaccine effectiveness during the Delta-predominant period. 3581 individuals (aged 18 to 100 years) from each timeframe were assessed. The seven most frequent symptoms were common to both variants. Within the first 28 days of illness, some symptoms were more common with Delta versus Alpha infection (including fever, sore throat, and headache) and some vice versa (dyspnoea). Symptom burden in the first week was higher with Delta versus Alpha infection; however, the odds of any given symptom lasting ≥ 7 days was either lower or unchanged. Illness duration ≥ 28 days was lower with Delta versus Alpha infection, though unchanged in unvaccinated individuals. Hospitalisation for COVID-19 was unchanged. The Delta variant appeared more (1.49) transmissible than Alpha. Re-infections were low in all UK regions. Vaccination markedly reduced the risk of Delta infection (by 69-84%). We conclude that COVID-19 from Delta or Alpha infections is similar. The Delta variant is more transmissible than Alpha; however, current vaccines showed good efficacy against disease. This research framework can be useful for future comparisons with new emerging variants.

Published
2022

7. Genomic epidemiology of SARS-CoV-2 in a UK university identifies dynamics of transmission

Author

Aggarwal, Dinesh, Warne, Ben, Jahun, Aminu S., Hamilton, William L., Fieldman, Thomas, du Plessis, Louis, Hill, Verity, Blane, Beth, Watkins, Emmeline, Wright, Elizabeth, Hall, Grant, Ludden, Catherine, Myers, Richard, Hosmillo, Myra, Chaudhry, Yasmin, Pinckert, Malte L., Georgana, Iliana, Izuagbe, Rhys, Leek, Danielle, Nsonwu, Olisaeloka, Hughes, Gareth J., Packer, Simon, Page, Andrew J., Metaxaki, Marina, Fuller, Stewart, Weale, Gillian, Holgate, Jon, Brown, Christopher A., Orton, Alexandra, Douthwaite, Julie, Rees, Steve, Brown, Christopher, Clark, Roger, Jones, Daniel R., Kuenzi, Fred, Rankin, Jennifer, Waddell, Ian, Maxwell, Patrick, Matheson, Nicholas, Abell, Chris, Braithwaite, Vickie, Brierley, Craig, Crowcroft, Jon, Dahal, Aastha, Faulkner, Kathryn, Glover, Michael, Goodfellow, Ian, Greatorex, Jane, James, Laura, Lehner, Paul, Leslie, Ian, Liddell, Kathleen, Margolis, Ben, Morgan, Sally, Sheridan, Linda, Valletta, Sally, Vignoles, Anna, Vinnell, Martin, Wills, Mark, Hilborne, Sarah, Berry, Sarah, Kahkeshi, Mahin Bagheri, Hancock, Dawn, Winster, Jennifer, Enright, Jessica, Samworth, Richard, Samtani, Vijay, Ahmadi-Assalemi, Gabriela, Feather, Tom, Goodall, Robin, Hoensch, Steve, Johnson, Dean, Hunt, Martin, Mathieson, Nick, Nikitina, Katya, Sheldrake, Zara, Keen, Martin, Sato, Aris, Connor, David, Tolhurst, Jonathan, Williman, Jack, Hollamby, Victoria, Jordan, Sinead, Fatseas, Tania, Taylor, Peter, Georgiou, Christine, Caspersz, Michelle, McNulty, Claire, Davies, Richard, Clarke, Rebecca, Danaei, Darius, Dyer, Rory, Glew, Rob, Lambson, Oliver, Gibbs, Karen, Mozdzen, Barbara, Raub, Gabor, Radecki, Asako, White, Phil, Hughes, Robert, Gransden, Lucie, Ceaser, Matt, Sing, Robert, Wilson, Karl, Parlikad, Ajith, Dhada, Maharshi, Ridgman, Tom, Mungovan, Diane, Matthews, Steve, Searle, Paul, Mills, John, Neely, Andy, Henderson, Robert, Murphy, Edna, Russell, Matthew, Freeling, Anthony, Poppitt, Steve, Tynan, Jo, Knapton, James, Marchetti, Filippo, Angelis, Daniela De, Feltwell, Theresa, Hadjirin, Nazreen F., Jahun, Aminu, Pinckert, Malte, Shaw, Ashley, Chaudhry, Afzal, Brown, Nicholas M., Mactavous, Lenette, Hannan, Sophie, Hosaja, Aleksandra, Leong, Clare, Wright, Jo, Quinnell, Natalie, Workman, Chris, Ferris, Mark, Wright, Giles, Brooks, Ellena, Carabelli, Alessandro M., Churcher, Carol M., Galai, Katerina, Girgis, Sophia T., Gupta, Ravi K., McManus, Georgina M., Palmer, Sophie, Peacock, Sharon J., Smith, Kim S., Allara, Elias, Bibby, David, Bishop, Chloe, Bosworth, Andrew, Bradshaw, Daniel, Chalker, Vicki, Chand, Meera, Dabrera, Gavin, Ellaby, Nicholas, Gallagher, Eileen, Groves, Natalie, Harrison, Ian, Hartman, Hassan, Hopes, Richard, Hubb, Jonathan, Hutchings, Stephanie, Lackenby, Angie, Ledesma, Juan, Lee, David, Manesis, Nikos, Manso, Carmen, Mbisa, Tamyo, Miah, Shahjahan, Muir, Peter, Osman, Husam, Patel, Vineet, Pearson, Clare, Platt, Steven, Pymont, Hannah M., Ramsay, Mary, Robinson, Esther, Schaefer, Ulf, Thornton, Alicia, Twohig, Katherine A., Vipond, Ian B., Williams, David, Aigrain, Louise, Alderton, Alex, Amato, Roberto, Ariani, Cristina V., Barrett, Jeff, Bassett, Andrew R., Beale, Mathew A., Beaver, Charlotte, Bellis, Katherine L., Betteridge, Emma, Bonfield, James, Bronner, Iraad F., Chapman, Michael H. S., Danesh, John, Davies, Robert, Dorman, Matthew J., Drury, Eleanor, Durham, Jillian, Farr, Ben W., Foulser, Luke, Goncalves, Sonia, Goodwin, Scott, Gourtovaia, Marina, Jackson, David K., James, Keith, Jamrozy, Dorota, Johnston, Ian, Kane, Leanne, Kay, Sally, Keatley, Jon-Paul, Kwiatkowski, Dominic, Langford, Cordelia F., Lawniczak, Mara, Lensing, Stefanie V., Leonard, Steven, Letchford, Laura, Lewis, Kevin, Liddle, Jennifier, Livett, Rich, Lo, Stephanie, Makunin, Alex, Martincorena, Inigo, McCarthy, Shane, McGuigan, Samantha, Moll, Robin J., Nelson, Rachel, Oliver, Karen, Palmer, Steve, Park, Naomi R., Patel, Minal, Prestwood, Liam, Puethe, Christoph, Quail, Michael A., Rajan, Diana, Rajatileka, Shavanthi, Redshaw, Nicholas M., Scott, Carol, Shirley, Lesley, Sillitoe, John, Thurston, Scott A. J., Tonkin-Hill, Gerry, Tovar-Corona, Jaime M., Weldon, Danni, Whitwham, Andrew, Attwood, Stephen W., Zamudio, Marina Escalera, Francois, Sarah, Gutierrez, Bernardo, Kraemer, Moritz U. G., Raghwani, Jayna, Vasylyeva, Tetyana I., Zarebski, Alex E., Alikhan, Nabil-Fareed, Aydin, Alp, Baker, David J., de Oliveira Martins, Leonardo, Kay, Gemma L., Le-Viet, Thanh, Mather, Alison E., Meadows, Lizzie, O’Grady, Justin, Rudder, Steven, Trotter, Alexander J., Illingworth, Chris J., Jackson, Chris, Aranday-Cortes, Elihu, Asamaphan, Patawee, Broos, Alice, Carmichael, Stephen N., da Silva Filipe, Ana, Hughes, Joseph, Jesudason, Natasha G., Johnson, Natasha, Li, Kathy K., Mair, Daniel, Nichols, Jenna, Nickbakhsh, Seema, Niebel, Marc O., Nomikou, Kyriaki, Orton, Richard J., Robertson, David L., Shah, Rajiv N., Shepherd, James G., Singer, Joshua B., Starinskij, Igor, Thomson, Emma C., Tong, Lily, Vattipally, Sreenu, Ash, Amy, Koshy, Cherian, Cortes, Nick, Kidd, Stephen, Lynch, Jessica, Moore, Nathan, Mori, Matilde, Wise, Emma, Curran, Tanya, Fairley, Derek J., McKenna, James P., Adams, Helen, Bonsall, David, Fraser, Christophe, Golubchik, Tanya, Cogger, Benjamin J., Hassan-Ibrahim, Mohammed O., Malone, Cassandra S., Reynolds, Nicola, Wantoch, Michelle, Afifi, Safiah, Beer, Robert, John, Michaela, Maksimovic, Joshua, McCluggage, Kathryn, Morgan, Sian, Spellman, Karla, Bresner, Catherine, Connor, Thomas R., Fuller, William, Guest, Martyn, Gulliver, Huw, Kitchen, Christine, Marchbank, Angela, Merrick, Ian, Munn, Robert, Price, Anna, Southgate, Joel, Workman, Trudy, Patel, Amita, Snell, Luke B., Batra, Rahul, Charalampous, Themoula, Edgeworth, Jonathan, Nebbia, Gaia, Beckett, Angela H., Robson, Samuel C., Aanensen, David M., Abudahab, Khalil, Menegazzo, Mirko, Taylor, Ben E. W., Underwood, Anthony P., Yeats, Corin A., Berry, Louise, Boswell, Tim, Clark, Gemma, Fleming, Vicki M., Howson-Wells, Hannah C., Jones, Carl, Joseph, Amelia, Khakh, Manjinder, Lister, Michelle M., Smith, Wendy, Willingham, Iona, Bird, Paul, Fallon, Karlie, Helmer, Thomas, Holmes, Christopher, Tang, Julian, Blakey, Victoria, Campbell, Sharon, Raviprakash, Veena, Sheriff, Nicola, Williams, Lesley-Anne, Carlile, Matthew, Debebe, Johnny, Holmes, Nadine, Loose, Matthew W., Moore, Christopher, Sang, Fei, Wright, Victoria, Coll, Francesc, Betancor, Gilberto, Signell, Adrian W., Wilson, Harry D., Davis, Thomas, Eldirdiri, Sahar, Kenyon, Anita, Torok, M. Estee, Lowe, Hannah, Moses, Samuel, Bedford, Luke, Moore, Jonathan, Stonehouse, Susanne, Awan, Ali R., Fisher, Chloe L., BoYes, John, Atkinson, Laura, Breuer, Judith, Brown, Julianne R., Harris, Kathryn A., Lee, Jack C. D., Shah, Divya, Storey, Nathaniel, Flaviani, Flavia, Alcolea-Medina, Adela, Vernet, Gabrielle, Williams, Rebecca, Chapman, Michael R., Chatterton, Wendy, Heaney, Judith, Levett, Lisa J., Pusok, Monika, Xu-McCrae, Li, Bashton, Matthew, Smith, Darren, Young, Greg, Bolt, Frances, Cox, Alison, Holmes, Alison, Madona, Pinglawathee, Mookerjee, Siddharth, Price, James, Randell, Paul A., Boyd, Olivia, Nascimento, Fabricia F., Geidelberg, Lily, Johnson, Rob, Jorgensen, David, Ragonnet-Cronin, Manon, Rowan, Aileen, Siveroni, Igor, Taylor, Graham P., Volz, Erik M., Smollett, Katherine L., Loman, Nicholas J., McMurray, Claire, McNally, Alan, Nicholls, Sam, Poplawski, Radoslaw, Quick, Joshua, Rowe, Will, Stockton, Joanne, Nunez, Rocio T. Martinez, Breen, Cassie, Cowell, Angela, Mason, Jenifer, O’Toole, Elaine, Robinson, Trevor I., Watts, Joanne, Sluga, Graciela, Ahmad, Shazaad S. Y., George, Ryan P., Machin, Nicholas W., Halstead, Fenella, Hogsden, Wendy, Sivaprakasam, Venkat, Carden, Holli, Hale, Antony D., Harper, Katherine L., Macfarlane-Smith, Louissa R., Burton-Fanning, Shirelle, Collins, Jennifer, Eltringham, Gary, Payne, Brendan AI., Taha, Yusri, Waugh, Sheila, O’Brien, Sarah, Rushton, Steven, Blacow, Rachel, Bradley, Amanda, Maclean, Alasdair, Mollett, Guy, Dewar, Rebecca, McHugh, Martin P., Templeton, Kate E., Wastenge, Elizabeth, Coupland, Lindsay, Dervisevic, Samir, Meader, Emma J., Stanley, Rachael, Smith, Louise, Barton, Edward, Graham, Clive, Padgett, Debra, Scott, Garren, Greenaway, Jane, Swindells, Emma, McCann, Clare, Nelson, Andrew, Yew, Wen Chyin, Andersson, Monique, Crook, Derrick, Eyre, David, Justice, Anita, Peto, Timothy, Duckworth, Nichola, Sloan, Tim J., Walsh, Sarah, Bicknell, Kelly, Chauhan, Anoop J., Elliott, Scott, Glaysher, Sharon, Impey, Robert, Lloyd, Allyson, Wyllie, Sarah, Levene, Nick, Monaghan, Lynn, Bradley, Declan T., Wyatt, Tim, Curran, Martin D., Parmar, Surendra, Holden, Matthew T. G., Shaaban, Sharif, Adams, Alexander, Asad, Hibo, Birchley, Alec, Bull, Matthew, Coombes, Jason, Corden, Sally, Cottrell, Simon, Craine, Noel, Cronin, Michelle, Davies, Alisha, Lacy, Elen De, Downing, Fatima, Edwards, Sue, Evans, Johnathan M., Fina, Laia, Gaskin, Amy, Gatica-Wilcox, Bree, Gifford, Laura, Gilbert, Lauren, Graham, Lee, Heyburn, David, Hilvers, Ember, Howe, Robin, Jones, Hannah, Jones, Rachel, Jones, Sophie, Kumziene-SummerhaYes, Sara, McKerr, Caoimhe, Moore, Catherine, Morgan, Mari, Pacchiarini, Nicole, Perry, Malorie, Plimmer, Amy, Rey, Sara, Shankar, Giri, Taylor, Sarah, Watkins, Joanne, Williams, Chris, Casey, Anna, Ratcliffe, Liz, Acheson, Erwan, Molnar, Zoltan, Simpson, David A., Thompson, Thomas, Auckland, Cressida, Ellard, Sian, Jones, Christopher R., Knight, Bridget A., Masoli, Jane A. H., Haque, Tanzina, Hart, Jennifer, Irish-Tavares, Dianne, Mahungu, Tabitha W., Witele, Eric, Dadrah, Ashok, Fenton, Melisa L., Saluja, Tranprit, Symmonds, Amanda, Bourgeois, Yann, Scarlett, Garry P., Cook, Kate, Dent, Hannah, Fearn, Christopher, Goudarzi, Salman, Loveson, Katie F., Paul, Hannah, Evans, Cariad, Johnson, Kate, Partridge, David G., Raza, Mohammad, Baker, Paul, Bonner, Stephen, Essex, Sarah, Liggett, Steven, Lyons, Ronan A., Mahanama, Adhyana I. K., Saeed, Kordo, Samaraweera, Buddhini, Silveira, Siona, Wilson-Davies, Eleri, Emanuela, P., Bayzid, Nadua, Cotic, Marius, Ensell, Leah, Hartley, John A., Jannoo, Riaz, Karamani, Angeliki, Kristiansen, Mark, Lowe, Helen L., Roy, Sunando, Westhorpe, Adam P., Williams, Rachel J., Williams, Charlotte A., Jeremiah, Sarah, Prieto, Jacqui A., Berry, Lisa, Grammatopoulos, Dimitris, Jones, Katie, Pandey, Sarojini, Beggs, Andrew, Richter, Alex, Ashcroft, Fiona, Best, Angus, Crawford, Liam, Cumley, Nicola, Mayhew, Megan, Megram, Oliver, Mirza, Jeremy, Moles-Garcia, Emma, Percival, Benita, Bucca, Giselda, Hesketh, Andrew R., Smith, Colin P., Davidson, Rose K., Balcazar, Carlos E., Gallagher, Michael D., O’Toole, Áine, Rambaut, Andrew, Rooke, Stefan, Stanton, Thomas D., Williams, Thomas, Williamson, Kathleen A., Bewshea, Claire M., Farbos, Audrey, Harrison, James W., Jeffries, Aaron R., Manley, Robin, Michell, Stephen L., Michelsen, Michelle L., Sambles, Christine M., Studholme, David J., Temperton, Ben, Warwick-Dugdale, Joanna, Darby, Alistair C., Eccles, Richard, Gemmell, Matthew, Gregory, Richard, Haldenby, Sam T., Hiscox, Julian A., Hughes, Margaret, Iturriza-Gomara, Miren, Jackson, Kathryn A., Lucaci, Anita O., Nelson, Charlotte, Paterson, Steve, Rainbow, Lucille, Turtle, Lance, Vamos, Edith E., Webster, Hermione J., Whitehead, Mark, Wierzbicki, Claudia, Angyal, Adrienn, Brown, Rebecca, de Silva, Thushan I., Freeman, Timothy M., Gallis, Marta, Green, Luke R., Groves, Danielle C., Keeley, Alexander J., Lindsey, Benjamin B., Louka, Stavroula F., Parker, Matthew D., Parsons, Paul J., Smith, Nikki, Tucker, Rachel M., Wang, Dennis, Whiteley, Max, Wyles, Matthew, Zhang, Peijun, Alam, Mohammad T., Baxter, Laura, Bridgewater, Hannah E., Brown, Paul E., Cheng, Jeffrey K. J., Constantinidou, Chrystala, Frost, Lucy R., Ott, Sascha, Stark, Richard, Taylor-Joyce, Grace, Unnikrishnan, Meera, Cerda, Alberto C., Merrill, Tammy V., Wilson, Rebekah E., Ball, Jonathan, Chappell, Joseph G., McClure, Patrick C., Tsoleridis, Theocharis, Buck, David, de Cesare, Mariateresa, Green, Angie, MacIntyre-Cockett, George, Todd, John A., Trebes, Amy, Gunson, Rory N., Cormie, Claire, Dias, Joana, Forrest, Sally, Gill, Harmeet K., Higginson, Ellen E., Kermack, Leanne M., Maes, Mailis, Ruis, Chris, Sridhar, Sushmita, Young, Jamie, Howes, Rob, McFarlane, Duncan, Dougan, Gordon, Pybus, Oliver G., Maxwell, Patrick H., Weekes, Michael P., Illingworth, Chris, Harrison, Ewan M., Matheson, Nicholas J., Goodfellow, Ian G., The Cambridge Covid-19 testing Centre, University of Cambridge Asymptomatic COVID-19 Screening Programm, The COVID-19 Genomics UK (COG-UK) Consortium, Aggarwal, Dinesh [0000-0002-5938-8172], Warne, Ben [0000-0003-1326-0373], Hill, Verity [0000-0002-3509-8146], Pinckert, Malte [0000-0002-6072-5949], Leek, Danielle [0000-0001-5367-3354], Pybus, Oliver [0000-0001-6619-6112], Weekes, Michael [0000-0002-0030-2784], Apollo - University of Cambridge Repository, Jahun, Aminu S [0000-0002-4585-1701], Hamilton, William L [0000-0002-3330-353X], du Plessis, Louis [0000-0003-0352-6289], Blane, Beth [0000-0002-0996-9091], Wright, Elizabeth [0000-0002-8378-9072], Hall, Grant [0000-0003-3928-3979], Chaudhry, Yasmin [0000-0002-2386-3269], Pinckert, Malte L [0000-0002-6072-5949], Izuagbe, Rhys [0000-0001-8080-2510], Nsonwu, Olisaeloka [0000-0002-3024-700X], Hughes, Gareth J [0000-0002-3781-0117], Packer, Simon [0000-0002-9157-3650], Page, Andrew J [0000-0001-6919-6062], Metaxaki, Marina [0000-0002-4552-1622], Weale, Gillian [0000-0003-4728-5915], Brown, Christopher A [0000-0001-7773-0878], Peacock, Sharon J [0000-0002-1718-2782], Pybus, Oliver G [0000-0002-8797-2667], Weekes, Michael P [0000-0003-3196-5545], Harrison, Ewan M [0000-0003-2720-0507], Matheson, Nicholas J [0000-0002-3318-1851], Goodfellow, Ian G [0000-0002-9483-510X], Jahun, Aminu [0000-0002-4585-1701], Hosmillo, Myra [0000-0002-3514-7681], McFarlane, Duncan [0000-0002-1558-7823], Dougan, Gordon [0000-0003-0022-965X], Peacock, Sharon [0000-0002-1718-2782], Weekes, Michael [0000-0003-3196-5545], Illingworth, Christopher [0000-0002-0030-2784], Harrison, Ewan [0000-0003-2720-0507], Matheson, Nicholas [0000-0002-3318-1851], and Goodfellow, Ian [0000-0002-9483-510X]

Subjects
Universities, 631/326/325/2483, Science, education, University of Cambridge Asymptomatic COVID-19 Screening Programme Consortium, General Physics and Astronomy, Cambridge Covid-19 testing Centre, 45/23, Genome, Viral, General Biochemistry, Genetics and Molecular Biology, COVID-19 Genomics UK (COG-UK) Consortium, Risk Factors, The COVID-19 Genomics UK (COG-UK) Consortium, Humans, Students, Phylogeny, 631/326/596/4130, Multidisciplinary, SARS-CoV-2, article, COVID-19, virus diseases, C500, General Chemistry, Genomics, C700, 692/700/478/174, United Kingdom, The Cambridge Covid-19 testing Centre, RNA, Viral, 631/326/596/2562, Contact Tracing, 631/326/596/2563
Abstract

Understanding SARS-CoV-2 transmission in higher education settings is important to limit spread between students, and into at-risk populations. In this study, we sequenced 482 SARS-CoV-2 isolates from the University of Cambridge from 5 October to 6 December 2020. We perform a detailed phylogenetic comparison with 972 isolates from the surrounding community, complemented with epidemiological and contact tracing data, to determine transmission dynamics. We observe limited viral introductions into the university; the majority of student cases were linked to a single genetic cluster, likely following social gatherings at a venue outside the university. We identify considerable onward transmission associated with student accommodation and courses; this was effectively contained using local infection control measures and following a national lockdown. Transmission clusters were largely segregated within the university or the community. Our study highlights key determinants of SARS-CoV-2 transmission and effective interventions in a higher education setting that will inform public health policy during pandemics., Nature Communications, 13, ISSN:2041-1723

Published
2022

8. Characterising within-hospital SARS-CoV-2 transmission events using epidemiological and viral genomic data across two pandemic waves

Author

Lindsey, Benjamin B, Villabona-Arenas, Ch Julián, Campbell, Finlay, Keeley, Alexander J, Parker, Matthew D, Shah, Dhruv R, Parsons, Helena, Zhang, Peijun, Kakkar, Nishchay, Gallis, Marta, Foulkes, Benjamin H, Wolverson, Paige, Louka, Stavroula F, Christou, Stella, State, Amy, Johnson, Katie, Raza, Mohammad, Hsu, Sharon, Jombart, Thibaut, Cori, Anne, Group, Sheffield COVID-19 Genomics, COVID-19 Genomics UK (COG-UK) Consortium, CMMID COVID-19 Working Group, Evans, Cariad M, Partridge, David G, Atkins, Katherine E, Hué, Stéphane, De Silva, Thushan I, Lindsey, Benjamin B [0000-0003-4227-2592], Villabona-Arenas, Ch Julián [0000-0001-9928-3968], Keeley, Alexander J [0000-0001-9386-1157], Parker, Matthew D [0000-0003-2999-3870], Shah, Dhruv R [0000-0002-6198-8273], Foulkes, Benjamin H [0000-0001-8532-3295], Wolverson, Paige [0000-0003-2709-0686], Hsu, Sharon [0000-0003-2356-9155], Partridge, David G [0000-0002-0417-2016], Atkins, Katherine E [0000-0001-5250-0558], Hué, Stéphane [0000-0002-8580-6905], de Silva, Thushan I [0000-0002-6498-9212], and Apollo - University of Cambridge Repository

Subjects
Cross Infection, Molecular Epidemiology, Multidisciplinary, SARS-CoV-2, Health Personnel, Science, COVID-19, General Physics and Astronomy, Bayes Theorem, Genome, Viral, Genomics, General Chemistry, Hospitals, United Kingdom, General Biochemistry, Genetics and Molecular Biology, Disease Outbreaks, Cohort Studies, Humans, Pandemics
Abstract

Hospital outbreaks of COVID19 result in considerable mortality and disruption to healthcare services and yet little is known about transmission within this setting. We characterise within hospital transmission by combining viral genomic and epidemiological data using Bayesian modelling amongst 2181 patients and healthcare workers from a large UK NHS Trust. Transmission events were compared between Wave 1 (1st March to 25th July 2020) and Wave 2 (30th November 2020 to 24th January 2021). We show that staff-to-staff transmissions reduced from 31.6% to 12.9% of all infections. Patient-to-patient transmissions increased from 27.1% to 52.1%. 40%-50% of hospital-onset patient cases resulted in onward transmission compared to 4% of community-acquired cases. Control measures introduced during the pandemic likely reduced transmissions between healthcare workers but were insufficient to prevent increasing numbers of patient-to-patient transmissions. As hospital-acquired cases drive most onward transmission, earlier identification of nosocomial cases will be required to break hospital transmission chains.

Published
2022

9. Publisher Correction: Characterising within-hospital SARS-CoV-2 transmission events using epidemiological and viral genomic data across two pandemic waves.

Author

Lindsey, Benjamin B., Villabona-Arenas, Ch. Julián, Campbell, Finlay, Keeley, Alexander J., Parker, Matthew D., Shah, Dhruv R., Parsons, Helena, Zhang, Peijun, Kakkar, Nishchay, Gallis, Marta, Foulkes, Benjamin H., Wolverson, Paige, Louka, Stavroula F., Christou, Stella, State, Amy, Johnson, Katie, Raza, Mohammad, Hsu, Sharon, Jombart, Thibaut, and Cori, Anne

Subjects
SARS-CoV-2, COVID-19
Abstract

In the main text and References, the phrase "Identifying within-hospitalSARS-CoV-2 transmission" was missing a space between "hospital" and "SARS-CoV-2", which has been corrected to "Identifying within-hospital SARS-CoV-2 transmission". In the main text, there were two uses of the phrase "hospital-acquiredSARS-CoV-2 infections" which were also missing a space between "acquired" and "SARS-CoV-2", which have been corrected to "hospital-acquired SARS-CoV-2 infections". [Extracted from the article]

Published
2022
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