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6 results on '"Jerry C H Tam"'

1. The effect of Omicron breakthrough infection and extended BNT162b2 booster dosing on neutralization breadth against SARS-CoV-2 variants of concern.

Author

Carl Graham, Thomas Lechmere, Aisha Rehman, Jeffrey Seow, Ashwini Kurshan, Isabella Huettner, Thomas J A Maguire, Jerry C H Tam, Daniel Cox, Christopher Ward, Mariusz Racz, Anele Waters, Christine Mant, Michael H Malim, Julie Fox, and Katie J Doores

Subjects
Immunologic diseases. Allergy, RC581-607, Biology (General), QH301-705.5
Abstract

COVID-19 vaccines are playing a vital role in controlling the COVID-19 pandemic. As SARS-CoV-2 variants encoding mutations in the surface glycoprotein, Spike, continue to emerge, there is increased need to identify immunogens and vaccination regimens that provide the broadest and most durable immune responses. We compared the magnitude and breadth of the neutralizing antibody response, as well as levels of Spike-reactive memory B cells, in individuals receiving a second dose of BNT162b2 at a short (3-4 week) or extended interval (8-12 weeks) and following a third vaccination approximately 6-8 months later. We show that whilst an extended interval between the first two vaccinations can greatly increase the breadth of the immune response and generate a higher proportion of Spike reactive memory B cells, a third vaccination leads to similar levels between the two groups. Furthermore, we show that the third vaccine dose enhances neutralization activity against omicron lineage members BA.1, BA.2 and BA.4/BA.5 and this is further increased following breakthrough infection during the UK omicron wave. These findings are relevant for vaccination strategies in populations where COVID-19 vaccine coverage remains low.

Published
2022
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2. Clinical features and management of individuals admitted to hospital with monkeypox and associated complications across the UK: a retrospective cohort study

Author

Douglas L Fink, Helen Callaby, Akish Luintel, William Beynon, Helena Bond, Eleanor Y Lim, Effrossyni Gkrania-Klotsas, Jospeh Heskin, Margherita Bracchi, Balram Rathish, Iain Milligan, Geraldine O'Hara, Stephanie Rimmer, Joanna R Peters, Lara Payne, Nisha Mody, Bethany Hodgson, Penny Lewthwaite, Rebecca Lester, Stephen D Woolley, Ann Sturdy, Ashley Whittington, Leann Johnson, Nathan Jacobs, John Quartey, Brendan AI Payne, Stewart Crowe, Ivo AM Elliott, Thomas Harrison, Joby Cole, Katie Beard, Tomas-Paul Cusack, Imogen Jones, Rishi Banerjee, Tommy Rampling, Jake Dunning, Iain D Milligan, Alison J Rodger, Sanjay R Bhagani, Lucy E Lamb, Rachel C Moores, Simon F K Lee, Colin S Brown, Susan Hopkins, Stephen Mepham, Simon Warren, Aoife Molloy, Ian Cropley, Alex Kew, Natasha Karunaharan, Antonia Scobie, Jennifer Hart, Dianne Irish, Tanzina Haque, Hamid Jalal, Robin Smith, Damien Mack, Tristan Barber, Fiona Burns, Robert Miller, Eleanor Hamlyn, Pedro Simoes, Breda Athan, Jennifer Abrahamsen, Jessica Joyce, Caroline Taylor, Sally Reddecliffe, Chloe Miller, Brooke Reeve, Hugh Kingston, Tim Crocker-Buque, Nicolas Massie, Ankush Dhariwal, Angelina Jayakumar, Robert Hammond, Alexandra Bramley, Tanmay Kanitkar, Laura Maynard-Smith, Eliza Gil, Cavan O'Connor, Derek Cocker, Wendy Spicer, Marisa Lanzman, Meera Thacker, Zoe O Anorson, Dharmesh Patel, Alan Williams, Catherine F Houlihan, Dominic Wakerley, Claire N Gordon, Daniel J Bailey, Jenna Furneaux, Abbie M Bown, Elizabeth J Truelove, Marian J Killip, David Jackson, Tracy L B Beetar-King, Ulrike M V Arnold, Rhea M Strachan, Jones Matthew, Hannah J Matthew, Jane C Osborne, Richard Vipond, Barry Gibney, Jodie Owen, Will Beynon, Michael Hunter, Louise McCorry, Carol Emerson, Say Quah, Suzanne Todd, Emma McCarty, Eoin Walker, Susan Feeney, Tanya Curran, Kathy Li, JD Mullan, Kate Jackson, Peter Nelson, Kevin Lewis, Mark McNicol, Marcus Pratt, Anna Smith, Erin Vos, Fahad Alsalemee, Daniel O Leary, John Canny, Katherine McGinnity, Carly Culbert, Conor McDowell, Cathy McQuillan, Eunjin Jeong, Lynsey Glass, Jessica Dyche, Paula McClean, Rebecca Stewart, Harold Ursolino, Melissa Perry, Hannah McCormick, Joseph Heskin, Nicklas Brown, Thomas Juniper, Borja Mora-Peris, Alessia Dalla-Pria, Nicola Mackie, Lucy Garvey, Alan Winston, Graham Cooke, Mark Nelson, Emer Kilbride, Ala Elbishi, William Kerrigan, Joshua Silva, Jesal Gohil, Sasha Payagala, Yasmin Walters, Joanna Smith, Jonathan Goodfellow, Kitty Lyons, Hsiu Tung, Kinjal Patel, Merle Henderson, Michael Butler, Edu Peres, Taiana Silva Carvalho, Antoine Joly, Molly Dickinson, Luke S P Moore, Nabeela Mughal, Stephen Hughes, Shrada Chitlangia, Priyanka Viramgana, Ruth Byrne, Paul Randell, Luigi Strangis, Nicola Poveda, Deborah Bovey, Poppy Richardson, Vivian Heaslip, Christopher Higgs, Marta Boffito, Nicolo Girometti, Gary Whitlock, Victoria Tittle, Rachel Jones, Michael Rayment, Christopher Scott, David Asboe, Marcus Pond, David Muir, Movin Abeywickrema, Sarah-Lou Bailey, Sara E Boyd, Dayana Da Silva Fontoura, Anna Daunt, Claire Y Mason, Jamie Murphy, Vasanth V Naidu, Aatish Patel, Caitlin Pley, Ethan Redmore, Katherine Sharrocks, Luke B Snell, Rohan Sundramoorthi, Jerry C H Tam, Aisling Brown, Sam Douthwaite, Anna Goodman, Gaia Nebbia, William Newsholme, Nicholas Price, Emily Shaw, Alex Salam, Claire van Nispen tot Pannerden, Helen Winslow, Julia Bilinska, Sarah Keegan, Harry Coleman, Jessica Doctor, Nasreen Moini, Daniella Chilton, Golaleh Haidari, Rebecca Simons, Rajababu Kulasegaram, Nick Larbalestier, Achyuta Nori, Jack R Potter, Cecilia Tuudah, Paul Wade, Alexandra Travers, Sarah Dunford, Joshua Greenwood, Georgina Oledimmah, Lesley Gyampo, Pedro SA Pinto, AbdulKadir Muse, Zoe Parker, Charlotte Alexander, Alexander Khan, Medinat Ajayi, Abigail Baltazar, Davis Sharella, Nasra Hersi, Thuy Nguyen, Rugiatu Timbo, Ismail Jalloh, Susan Bryan, Patricia Clarke, Marcia Kerr, Fidelis Amedu, Maria BohoBonaba, Sarah Haque, Michelle Howson, Norbai Tambilawan, Soledad Yupanqui Estay, Hawanatu Bangura, Tseday Gideon, Damilola Jerome-oboh, Linda Tetteh, Chioma Nwagu, Viwoalo Agbaglah, Nona Narag, Mahima Zaveri, Maedhbh Ni Luanaigh, Peggy Keane, Aula Abbara, Olamide Dosekun, Mhairi Bolland, Adam Stafford, Dina Saleh, Rhianna Sheridan, Ella Davies, Kristi Sun, Mark Gilchrist, Priti Kukadia, Muhammed Embrahimsa, Christopher Chiu, Lauren Taylor, Charlotte Short, Jasmini Alagratnam, Iresh Jayaweera, Kavitha Gundugola, Lara V S Payne, Killian Quinn, Caoimhe Nic Fhogartaigh, Nivenjit Kaur, Salmaan Bholah, Kajann Kantha, Jonathan Youngs, Temi Lampejo, Nicholas Pitto, David S Lawrence, Holly Middleditch, Lourdes Dominguez-Dominguez, Ayoma Ratnappuli, Sara Al-Hashimi, Amelia Oliveira, Zoe Ottaway, Larissa Mulka, Anne M Neary, Michael R Downey, Danielle C Lucy, Craig I McCallum, Michael Beadsworth, Libuse Ratcliffe, Tom E Fletcher, Gerry Davies, Nicholas Wong, Stephen Aston, Thomas E Wingfield, Thomas Blanchard, Paul Hine, Susie Gould, Christopher Smith, Michael Abouyannis, Abolaji Atomode, James Cruise, Merna Samual, Nicola Scott, Vino Srirathan, Joseph Lewis, Lauren Richards, Mary-Ann Cummings, Emily Gillan, Rebecca Peers, Amy Tickle, Grace Keating, Tendi Chinyanda, Mav Sanchez, Daniel Harrison, null Hoyle, Ben Metcalfe, Jennifer Taylor, Nicky Johnson, Neil Kelle, Kirsty McDowell, Ian Richardson, Monette Saguidan, Nicky Farmer, Angella Gillespie, Shay Willoughby, Samantha Parker, Shamseena Avulan, Shazia Arif, Suzanne Marshall, David Carlisle, Mohsen Rezaei, Angela Booth, Joanne Watts, Lauren Tremarco, Priyanga Jeyanayagam, Odinaka Ubochi, Daniel Vagianos, Mark Richardson, Anthony Jarvis, Kyra Gow, Jade Walmsley, Adam O'keefe, Anna Smielewska, Mark Hopkins, Fatima Balane, Sarah Bradley, Tumena Corrah, Venus Daquiz, Christopher Dugan, Joshua Elliot, Fiona Foley, Dawn Friday, May Gamit, David Garner, Karishma Gokani, Laurence John, Deepa Joseph, Nuzhath Khan, Cherifer Mamuyac, Alastair McGregor, John McSorley, Victoria Parris, Luciana Rubinstein, Julian Rycroft, Kelcy Salinas, Jason Salinas, Jency Sebatian, Melanie Smith, Marina Tejero Garcia, Uchenna Ume, Margarete Vicentine, Gabriel Wallis, Alec Bonington, Alison Uriel, Andrew Ustianowski, Balazs Dancso, Celia Hogan, Clare van Halsema, F Javier Vilar, Karen Devine, Katherine Ajdukiewicz, Rajesh Rajendran, Samit Ghosh, Michael Riste, Nicholas Machin, Chitra Babu, Shazaad Ahmad, Dorcas Obeng, Farnaz Dave, Gavin Conolley, Joseph Thompson, Maya Tickell-Painter, Prasun Chakravorty, Rachel Pringle, Mohammad R Zafar, Sarah Lawrence, Amada Sanchez-Gonzalez, Cristina Fernandez, Lynsey Goodwin, David Carey, Molly Howarth-Maddison, Samuel Moody, Rebecca Upton, Christina Apthorp, Charlotte Murray, Kirstie Salthouse, Sabah Nadeem, Grant Ridley, Francesca White, Andrew Brown, Michael Lawless, Mohamed Mohamed, Robert Mulligan, Amy Belfield, Jacob Brolly, Maria Calderon, James Cheveau, Milo Cullinan, Sophie Garrad, Will Griffiths, Aidan Ireland, Peter Ireland, Charlotte Milne, Paul Nwajiugo, Bijan Ghavami-Kia, Chris Duncan, Adam Evans, Ewan Hunter, Ashley Price, Matthias Schmid, Uli Schwab, Yusri Taha, Brendan Payne, Ivo A M Elliott, Charles J Woodrow, Drosos E Karageorgopoulos, Peter J Davis, Emily Lord, Oliver J Bannister, Andrew B Dagens, Anne Tunbridge, Saher Choudry, Adam Telfer, Ihsan Jhibril, Syed N Atta, Ben Stone, Cariad Evans, Mike Ankcorn, Suha Akili, Mehmet Yavuz, Vicky Goodall, Sam Farrow, Georgina Mountford, Kate Beard, Julian Sutton, Tristan Clark, Annette Mason, Mike Vickers, Derek Macallan, Tihana Bicanic, Angela Houston, Cassie Pope, NgeeKeong Tan, Christopher Ward, Jonathan Cohen, Marieke Emonts-le Clercq, David Porter, Andrew Riordan, Ruchi Sinha, Elizabeth Whittaker, and Monkeypox, Specialist and High Consequence Infectious Diseases Centres Network for

Subjects
Infectious Diseases
Abstract

Background:The scale of the 2022 global mpox (formerly known as monkeypox) outbreak has been unprecedented. In less than 6 months, non-endemic countries have reported more than 67 000 cases of a disease that had previously been rare outside of Africa. Mortality has been reported as rare but hospital admission has been relatively common. We aimed to describe the clinical and laboratory characteristics and outcomes of individuals admitted to hospital with mpox and associated complications, including tecovirimat recipients. Methods:In this cohort study, we undertook retrospective review of electronic clinical records and pathology data for all individuals admitted between May 6, and Aug 3, 2022, to 16 hospitals from the Specialist and High Consequence Infectious Diseases Network for Monkeypox. The hospitals were located in ten cities in England and Northern Ireland. Inclusion criteria were clinical signs consistent with mpox and MPXV DNA detected from at least one clinical sample by PCR testing. Patients admitted solely for isolation purposes were excluded from the study. Key outcomes included admission indication, complications (including pain, secondary infection, and mortality) and use of antibiotic and anti-viral treatments. Routine biochemistry, haematology, microbiology, and virology data were also collected. Outcomes were assessed in all patients with available data. Findings:156 individuals were admitted to hospital with complicated mpox during the study period. 153 (98%) were male and three (2%) were female, with a median age of 35 years (IQR 30–44). Gender data were collected from electronic patient records, which encompassed full formal review of clincian notes. The prespecified options for data collection for gender were male, female, trans, non-binary, or unknown. 105 (71%) of 148 participants with available ethnicity data were of White ethnicity and 47 (30%) of 155 were living with HIV with a median CD4 count of 510 cells per mm3(IQR 349–828). Rectal or perianal pain (including proctitis) was the most common indication for hospital admission (44 [28%] of 156). Severe pain was reported in 89 (57%) of 156, and secondary bacterial infection in 82 (58%) of 142 individuals with available data. Median admission duration was 5 days (IQR 2–9). Ten individuals required surgery and two cases of encephalitis were reported. 38 (24%) of the 156 individuals received tecovirimat with early cessation in four cases (two owing to hepatic transaminitis, one to rapid treatment response, and one to patient choice). No deaths occurred during the study period. Interpretation:Although life-threatening mpox appears rare in hospitalised populations during the current outbreak, severe mpox and associated complications can occur in immunocompetent individuals. Analgesia and management of superimposed bacterial infection are priorities for patients admitted to hospital.

Published
2023
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3. Are the Patterns of Cytomegalovirus Viral Load Seen After Solid Organ Transplantation Affected by Circadian Rhythm?

Author

Hannah Rafferty, Matthew J Murray, Jerry C H Tam, Alastair Macfarlane, Colette Smith, Sheila F Lumley, Sowsan Atabani, Jane A McKeating, Dinesh Sharma, Matthew Reeves, David Whitmore, and Paul Griffiths

Subjects
Infectious Diseases, Cytomegalovirus Infections, Cytomegalovirus, Humans, virus diseases, Immunology and Allergy, Organ Transplantation, Viremia, Viral Load, Antiviral Agents, Circadian Rhythm, Retrospective Studies
Abstract

Background Cytomegalovirus (CMV) is an important opportunistic pathogen after transplantation. Some virological variation in transplant recipients is explained by donor and recipient CMV serostatus, but not all. Circadian variability of herpesviruses has been described, so we investigated the effect of time of day of transplantation on posttransplant CMV viremia. Methods We performed a retrospective analysis of 1517 patients receiving liver or kidney allografts at a single center from 2002 to 2018. All patients were given preemptive therapy with CMV viremia monitoring after transplantation. Circulatory arrest and reperfusion time of donor organ were categorized into 4 periods. Patients were divided into serostatus groups based on previous CMV infection in donor and recipient. CMV viremia parameters were compared between time categories for each group. Factor analysis of mixed data was used to interrogate this complex data set. Results Live-donor transplant recipients were less likely to develop viremia than recipients of deceased-donor organs (48% vs 61%; P Discussion We found no evidence for a circadian effect of transplantation on CMV viremia, but these novel results warrant confirmation by other centers.

Published
2022
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4. Endogenous antibody responses in REGN-COV2-treated SARS-CoV-2-infected individuals

Author

Ashwini Kurshan, Luke B Snell, Lucie Prior, Jerry C H Tam, Carl Graham, Rajeni Thangarajah, Jonathan D Edgeworth, Gaia Nebbia, and Katie J Doores

Subjects
General Medicine
Abstract

Neutralizing monoclonal antibodies (mAbs) targeting severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Spike glycoprotein have been developed for the treatment of COVID-19. Whilst antibody therapy has been shown to reduce the risk of COVID-19-associated hospitalization and death, there is limited understanding of the endogenous immunity to SARS-CoV-2 generated in mAb-treated patients and therefore ongoing susceptibility to future infections. Here we measure the endogenous antibody response in SARS-CoV-2-infected individuals treated with REGN-COV2 (Ronapreve). We show that in the majority of unvaccinated, delta-infected REGN-COV2-treated individuals, an endogenous antibody response is generated, but, like untreated, delta-infected individuals, there was a limited neutralization breadth. However, some vaccinated individuals who were seronegative at SARS-CoV-2 infection baseline and some unvaccinated individuals failed to produce an endogenous immune response following infection and REGN-COV2 treatment demonstrating the importance of mAb therapy in some patient populations.

Published
2023
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5. Severe COVID-19 caused by persistent SARS-CoV-2 infection successfully treated with dual direct acting antivirals

Author

Luke Blagdon Snell, Prijay Bakrania, Tom G S Williams, Jerry C H Tam, Dayana Da Silva Fontoura, Emily Shaw, Anna Daunt, Jonathan D Edgeworth, Carolyn J Hemsley, Paul Fields, Sangita Agarwal, Boris Lams, Helen Cahill, Iain Milligan, Alina Botgros, Gaia Nebbia, Sam T Douthwaite, and Emma Aarons

Abstract

We report the successful use of combination therapy with two direct acting antivirals for treatment of chronic COVID-19. An immunocompromised 60 year old male with persistent SARS-CoV-2 infection over 4 months had chronic, progressive COVID-19 requiring mechanical ventilation. After failing monotherapy with two antivirals and neutralising monoclonal antibodies, he was treated with a 10 day course of intravenous remdesivir and crushed nirmatrelvir/ritonavir (Paxlovid) administered through a nasogastric tube. Following treatment, SARS-CoV-2 RNA became undetectable, with resolution of supplemental oxygen requirement and acute inflammatory changes on computed tomography. This case demonstrates potential synergy between remdesivir and nirmatrelvir/ritonavir in treating persistent, symptomatic SARS-CoV-2 infection.

Published
2022

6. Clinical features and novel presentations of human monkeypox in a central London centre during the 2022 outbreak: descriptive case series

Author

Aatish Patel, Julia Bilinska, Jerry C H Tam, Dayana Da Silva Fontoura, Claire Y Mason, Anna Daunt, Luke B Snell, Jamie Murphy, Jack Potter, Cecilia Tuudah, Rohan Sundramoorthi, Movin Abeywickrema, Caitlin Pley, Vasanth Naidu, Gaia Nebbia, Emma Aarons, Alina Botgros, Sam T Douthwaite, Claire van Nispen tot Pannerden, Helen Winslow, Aisling Brown, Daniella Chilton, and Achyuta Nori

Subjects
Adult, Male, Sexual and Gender Minorities, London, Sexually Transmitted Diseases, Humans, Pain, Female, HIV Infections, General Medicine, Monkeypox, Homosexuality, Male, Disease Outbreaks
Abstract

ObjectiveTo characterise the clinical features of monkeypox infection in humans.DesignDescriptive case series.SettingA regional high consequences infectious disease centre with associated primary and secondary care referrals, and affiliated sexual health centres in south London between May and July 2022.Participants197 patients with polymerase chain reaction confirmed monkeypox infection.ResultsThe median age of participants was 38 years. All 197 participants were men, and 196 identified as gay, bisexual, or other men who have sex with men. All presented with mucocutaneous lesions, most commonly on the genitals (n=111 participants, 56.3%) or in the perianal area (n=82, 41.6%). 170 (86.3%) participants reported systemic illness. The most common systemic symptoms were fever (n=122, 61.9%), lymphadenopathy (114, 57.9%), and myalgia (n=62, 31.5%). 102/166 (61.5%) developed systemic features before the onset of mucocutaneous manifestations and 64 (38.5%) after (n=4 unknown). 27 (13.7%) presented exclusively with mucocutaneous manifestations without systemic features. 71 (36.0%) reported rectal pain, 33 (16.8%) sore throat, and 31 (15.7%) penile oedema. 27 (13.7%) had oral lesions and 9 (4.6%) had tonsillar signs. 70/195 (35.9%) participants had concomitant HIV infection. 56 (31.5%) of those screened for sexually transmitted infections had a concomitant sexually transmitted infection. Overall, 20 (10.2%) participants were admitted to hospital for the management of symptoms, most commonly rectal pain and penile swelling.ConclusionsThese findings confirm the ongoing unprecedented community transmission of monkeypox virus among gay, bisexual, and other men who have sex with men seen in the UK and many other non-endemic countries. A variable temporal association was observed between mucocutaneous and systemic features, suggesting a new clinical course to the disease. New clinical presentations of monkeypox infection were identified, including rectal pain and penile oedema. These presentations should be included in public health messaging to aid early diagnosis and reduce onward transmission.

Published
2022
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