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1. Clinical comparison and agreement of PCR, antigen, and viral culture for the diagnosis of COVID-19

Author

Amanda Agard, Omar Elsheikh, Drew Bell, Ryan F. Relich, Bryan H. Schmitt, Josh Sadowski, William Fadel, Douglas H. Webb, Lana Dbeibo, Kristen Kelley, Mariel Carozza, Guang-Shen Lei, Paul Calkins, and Cole Beeler

Subjects
COVID-19, SARS-CoV-2, Antigen testing, PCR testing, Viral culture, Diagnostics, Infectious and parasitic diseases, RC109-216
Abstract

The aim of this study is to compare the COVID-19 nasopharyngeal PCR (NP PCR) to antigen, nasal PCR, and viral culture. One-hundred-and-fourteen risk-stratified patients were tested by culture, nasal PCR, NP PCR, and Ag testing. Twenty (48%) of the high risk and 23 (32%) of the low risk were NP PCR positive. Compared with NP PCR, the sensitivity of nasal PCR, Sofia Ag, BinaxNOW Ag, and culture were 44%, 31%, 37%, and 15%. In the high risk group, the sensitivity of these tests improved to 71%, 37%, 50%, and 22%. Agreement between tests was highest between nasal PCR and both antigen tests. Patients who were NP PCR positive but antigen negative were more likely to have remote prior COVID-19 infection (p

Published
2022
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2. Persistent SARS-CoV-2 infectivity greater than 50 days in a case series of allogeneic peripheral blood stem cell transplant recipients

Author

Alice Han, Tulio E. Rodriguez, Eric T. Beck, Ryan F. Relich, Dioma U. Udeoji, Robert Petrak, and Vishnu V. Chundi

Subjects
COVID-19, Sars-CoV-2, Persistent infection, Positive culture, PBSCT, HSCT, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

The coronavirus disease 19 (COVID-19) pandemic has infected tens of millions across the world, but there is a significant gap in our understanding about COVID-19 in the hematopoietic stem transplant (HSCT) recipient population. Prolonged viral shedding is frequently observed with severe acute respiratory syndrome coronavirus-2 (SARSCoV-2), but studies suggest viral loads decline 10 days after symptom onset. Current CDC guidance suggests that severely ill and immunocompromised hosts are no longer infectious after 20 days from symptom onset. Cycle threshold (Ct) values are inversely proportional to the viral load and are used to detect SARS-CoV-2 RNA concentration. Specimens with reverse transcriptase PCR (RT-PCR) Ct values > 33–34 have been associated with inability to culture virus, and have been used as a surrogate for diminished infectivity. We report two cases of allogeneic peripheral blood stem cell transplant (PBSCT) recipients who had prolonged durations of infectivity with SARSCov-2, based on culture positivity and persistently low Ct values for greater than 50 days.

Published
2021
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4. Contributors

Author

Mark J. Abzug, Elisabeth E. Adderson, Aastha Agarwal, Allison L. Agwu, Lindsey Albenberg, Jonathan Albert, Kevin Alby, Grace M. Aldrovandi, Upton D. Allen, Gerardo Alvarez-Hernndez, Krow Ampofo, Evan J. Anderson, Grace D. Appiah, Monica I. Ardura, Stephen S. Arnon, Naomi E. Aronson, Ann M. Arvin, Shai Ashkenazi, Liat Ashkenazi-Hoffnung, Edwin J. Asturias, Kestutis Aukstuolis, Vahe Badalyan, Carol J. Baker, Karthik Balakrishnan, Elizabeth D. Barnett, Kirsten Bechtel, William E. Benitz, Rachel Berkovich, David M. Berman, Stephanie R. Bialek, Else M. Bijker, Matthew J. Bizzarro, Karen C. Bloch, Joseph A. Bocchini, Thomas G. Boyce, John S. Bradley, Denise F. Bratcher, Paula K. Braverman, Itzhak Brook, Kevin Edward Brown, Kristina P. Bryant, Andres F. Camacho-Gonzalez, Connie F. Caete-Gibas, Joseph B. Cantey, Paul Cantey, Cristina V. Cardemil, Mary T. Caserta, Luis A. Castagnini, Jessica R. Cataldi, Ellen Gould Chadwick, Rebecca J. Chancey, Cara C. Cherry, Silvia S. Chiang, Mary Choi, John C. Christenson, Susan E. Coffin, Amanda Cohn, Despina G. Contopoulos-Ioannidis, James H. Conway, Margaret M. Cortese, C. Buddy Creech, Jonathan D. Crews, Donna Curtis, Nigel Curtis, Lara A. Danziger-Isakov, Toni Darville, Gregory A. Dasch, Irini Daskalaki, H. Dele Davies, Fatimah S. Dawood, J. Christopher Day, M. Teresa de la Morena, Gregory P. DeMuri, Dickson D. Despommier, Daniel S. Dodson, Stephen J. Dolgner, Clinton Dunn, Jonathan Dyal, Kathryn M. Edwards, Morven S. Edwards, Dawn Z. Eichenfield, Lawrence F. Eichenfield, Dirk M. Elston, Beth Emerson, Leslie A. Enane, Moshe Ephros, Guliz Erdem, Marina E. Eremeeva, Douglas H. Esposito, Monica M. Farley, Anat R. Feingold, Kristina N. Feja, Adam Finn, Marc Fischer, Brian T. Fisher, Randall G. Fisher, Patricia Michele Flynn, Monique A. Foster, LeAnne M. Fox, Michael M. Frank, Douglas R. Fredrick, Robert W. Frenck, James Gaensbauer, Hayley A. Gans, Gregory M. Gauthier, Patrick Gavigan, Jeffrey S. Gerber, Yael Gernez, Francis Gigliotti, Mark A. Gilger, Carol A. Glaser, Jane M. Gould, James Graziano, Amanda M. Green, Michael Green, Daniel Griffin, Patricia M. Griffin, David C. Griffith, Piyush Gupta, Bruce J. Gutelius, Julie R. Gutman, Aron J. Hall, Rana F. Hamdy, Jin-Young Han, Lori K. Handy, Benjamin Hanisch, Marvin B. Harper, Aaron M. Harris, Christopher J. Harrison, David B. Haslam, Julia C. Haston, Sarah.J. Hawkes, Taylor Heald-Sargent, J. Owen Hendley, Adam L. Hersh, Joseph A. Hilinski, Susan L. Hills, David K. Hong, Peter J. Hotez, Katherine K. Hsu, Felicia Scaggs Huang, David A. Hunstad, W. Garrett Hunt, Loris Y. Hwang, Christelle M. Ilboudo, Preeti Jaggi, Sophonie Jean, Ravi Jhaveri, Kateina Jirk-Pomajbkov, Nadia A. Kadry, Mary L. Kamb, Ronak K. Kapadia, Ben Z. Katz, Sophie E. Katz, Ishminder Kaur, Gilbert J. Kersh, Muhammad Ali Khan, Ananta Khurana, David W. Kimberlin, Bruce Klein, Miwako Kobayashi, Larry K. Kociolek, Andrew Y. Koh, Karen L. Kotloff, Andrew T. Kroger, Matthew P. Kronman, Leah Lalor, Christine T. Lauren, Amy Leber, Eyal Leshem, David B. Lewis, Robyn A. Livingston, Eloisa Llata, Kevin Lloyd, Katrina Loh, Sarah S. Long, Benjamin A. Lopman, Yalda C. Lucero, Debra J. Lugo, Jorge Lujn-Zilbermann, Yvonne A. Maldonado, John J. Manaloor, Kalpana Manthiram, Stacey W. Martin, Roshni Mathew, Tony Mazzulli, Elizabeth J. McFarland, Kathleen A. McGann, Lucy A. McNamara, Debrah Meislich, H. Cody Meissner, Asuncion Mejias, Jussi Mertsola, Kevin Messacar, Mohammad Nael Mhaissen, Marian G. Michaels, Melissa B. Miller, Hilary Miller-Handley, Eric Mintz, Parvathi Mohan, Susan P. Montgomery, Jose G. Montoya, Anne C. Moorman, Pedro L. Moro, Anna-Barbara Moscicki, William J. Muller, Angela L. Myers, Simon Nadel, Jennifer Lynn Nayak, Michael Noel Neely, Karen P. Neil, Christina A. Nelson, Noele P. Nelson, Megin Nichols, William Nicholson, Amy Jo Nopper, Laura E. Norton, Theresa J. Ochoa, Liset Olarte, Timothy R. Onarecker, Walter A. Orenstein, Miguel ORyan, William R. Otto, Christopher P. Ouellette, Christopher D. Paddock, Debra L. Palazzi, Suresh Kumar Panuganti, Diane E. Pappas, Michal Paret, Daniel M. Pastula, Thomas F. Patterson, Brett W. Petersen, Mikael Petrosyan, Larry K. Pickering, Talia Pindyck, Swetha Pinninti, Laure F. Pittet, Paul J. Planet, Andrew J. Pollard, Klara M. Posfay-Barbe, Casper S. Poulsen, Susan M. Poutanen, Ann M. Powers, Nina Salinger Prasanphanich, Bobbi S. Pritt, Charles G. Prober, Neha Puar, Laura A.S. Quilter, Octavio Ramilo, Suchitra Rao, Adam J. Ratner, Sarah A. Rawstron, Jennifer S. Read, Ryan F. Relich, Megan E. Reller, Candice L. Robinson, Jos R. Romero, David A. Rosen, Shannon A. Ross, G. Ingrid J.G. Rours, Peter C. Rowe, Anne H. Rowley, Lorry G. Rubin, Edward T. Ryan, Alexandra Sacharok, Thomas J. Sandora, Sarah G.H. Sapp, Kabir Sardana, Jason B. Sauberan, Joshua K. Schaffzin, Sarah Schillie, Jennifer E. Schuster, Kevin L. Schwartz, Bethany K. Sederdahl, Jose Serpa-Alvarez, Kara N. Shah, Samir S. Shah, Nader Shaikh, Andi L. Shane, Eugene D. Shapiro, Jana Shaw, Avinash K. Shetty, Timothy R. Shope, Linda M. Dairiki Shortliffe, Stanford T. Shulman, Gail F. Shust, George Kelly Siberry, Jane D. Siegel, Robert David Siegel, Kari A. Simonsen, Upinder Singh, Christiana Smith, Lauren L. Smith, Eunkyung Song, Emily Souder, Paul Spearman, Joseph W. St. Geme, Mary Allen Staat, J. Erin Staples, Jeffrey R. Starke, Victoria A. Statler, William J. Steinbach, Christen Rune Stensvold, Erin K. Stokes, Bradley P. Stoner, Gregory A. Storch, Anne Straily, Kathleen E. Sullivan, Douglas S. Swanson, Robert R. Tanz, Gillian Taormina, Jacqueline E. Tate, Jeanette Taveras, Marc Tebruegge, Eyasu H. Teshale, George R. Thompson, Robert Thompson-Stone, Isaac Thomsen, Richard B. Thomson, Emily A. Thorell, Vivian Tien, Nicole H. Tobin, Philip Toltzis, James Treat, Stephanie B. Troy, Russell B. Van Dvke, Louise Elaine Vaz, Vini Vijayan, Jennifer Vodzak, Thor A. Wagner, Ellen R. Wald, Rebecca Wallihan, Huanyu Wang, Zoon Wangu, Matthew Washam, Valerie Waters, Joshua R. Watson, Jill E. Weatherhead, Geoffrey A. Weinberg, Mark K. Weng, Nathan P. Wiederhold, Harold C. Wiesenfeld, Cydni Williams, John V. Williams, Rodney E. Willoughby, Robert R. Wittler, James B. Wood, Charles Reece Woods, Kimberly A. Workowski, Terry W. Wright, Hsi-Yang Wu, Huan Xu, Pablo Yagupsky, Jumi Yi, Jonathan Yoder, Edward J. Young, Andrea L. Zaenglein, Petra Zimmermann, and Wenjing Zong

Published
2023
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5. Characterization of Pontibacter altruii, sp. nov., isolated from a human blood culture

Author

Marijo S. Roiko, Ryan F. Relich, and Meghan May

Subjects
0301 basic medicine, Pontibacter, 030106 microbiology, Microbiology, Blood culture, lcsh:Infectious and parasitic diseases, 03 medical and health sciences, Genus, Antibiotics, lcsh:RC109-216, Elizabethkingia meningoseptica, Genetics, biology, Human blood, Mass spectrometry, Bacteroidetes, Strain (biology), Family cytophagaceae, biology.organism_classification, 16S ribosomal RNA, Novel species, 030104 developmental biology, Infectious Diseases
Abstract

The genus Pontibacter is a recent addition to the family Cytophagaceae, phylum Bacteroidetes. Previous reports of its cultivation and molecular detection are from a variety of environmental sources, including marine and desert habitats. We report the first description of a Pontibacter sp., which was initially identified as Elizabethkingia meningoseptica, isolated from a human clinical specimen. On the basis of 16S rRNA gene sequence, unique mass spectral profile and phenotypic characterization, this isolate represents a novel species within the genus Pontibacter that has been named Pontibacter altruii, sp. nov., strain Grand Forks.

Published
2017

6. Contributors

Author

Mark J. Abzug, Elisabeth E. Adderson, Allison L. Agwu, Kevin Alby, Grace M. Aldrovandi, Upton D. Allen, Gerardo Alvarez-Hernández, Krow Ampofo, Evan J. Anderson, Margot Anderson, Stella Antonara, Monica I. Ardura, Paul M. Arguin, John C. Arnold, Naomi E. Aronson, Ann M. Arvin, Shai Ashkenazi, Edwin J. Asturias, Vahe Badalyan, Carol J. Baker, Karthik Balakrishnan, Brittany S. Barros, William J. Barson, Daniel G. Bausch, Kirsten Bechtel, Daniel K. Benjamin, David M. Berman, David A. Blanco, Karen C. Bloch, Margaret J. Blythe, Joseph A. Bocchini, Anna Bowen, William R. Bowie, Thomas G. Boyce, John S. Bradley, Michael T. Brady, Denise F. Bratcher, Paula K. Braverman, Joseph Bresee, Itzhak Brook, Kevin E. Brown, Kristina Bryant, E. Stephen Buescher, Jane L. Burns, Carrie L. Byington, Andres F. Camacho-Gonzalez, Paul Cantey, Bryan D. Carter, Mary T. Caserta, Luis A. Castagnini, Chiara Cerini, Ellen Gould Chadwick, Silvia S. Chiang, John C. Christenson, Susan E. Coffin, Melissa G. Collier, Jennifer P. Collins, Laurie S. Conklin, Beverly L. Connelly, Despina Contopoulos-Ioannidis, James H. Conway, Margaret M. Cortese, Elaine G. Cox, C. Buddy Creech, Jonathan D. Crews, Dennis J. Cunningham, Nigel Curtis, Natalie J.M. Dailey, Lara A. Danziger-Isakov, Toni Darville, Gregory A. Dasch, Irini Daskalaki, Robert S. Daum, Michael Davenport, H. Dele Davies, Fatimah S. Dawood, J. Christopher Day, Maite de la Morena, Gail J. Demmler-Harrison, Gregory P. DeMuri, Dickson D. Despommier, Karen A. Diefenbach, Kathryn M. Edwards, Morven S. Edwards, Lawrence F. Eichenfield, Dirk M. Elston, Beth Emerson, Moshe Ephros, Guliz Erdem, Marina E. Eremeeva, Jessica E. Ericson, Douglas H. Esposito, Monica M. Farley, Anat R. Feingold, Kristina N. Feja, Adam Finn, Marc Fischer, Patricia M. Flynn, LeAnne M. Fox, Michael M. Frank, Douglas R. Fredrick, Robert W. Frenck, Sheila Fallon Friedlander, Hayley A. Gans, Gregory M. Gauthier, Jeffrey S. Gerber, Francis Gigliotti, Mark A. Gilger, Carol A. Glaser, Amanda F. Goddard, Benjamin D. Gold, Jane M. Gould, Michael Green, David Greenberg, Tanya Greywal, Daniel Griffin, Patricia M. Griffin, Alexei A. Grom, Kathleen Gutierrez, Julie Gutman, Judith A. Guzman-Cottrill, Aron J. Hall, Jin-Young Han, Marvin B. Harper, Julie R. Harris, Christopher J. Harrison, David B. Haslam, Sarah J. Hawkes, J. Owen Hendley, Marion C.W. Henry, Joseph A. Hilinski, Susan L. Hills, Scott D. Holmberg, Deborah Holtzman, David K. Hong, Peter J. Hotez, Katherine K. Hsu, David A. Hunstad, Loris Y. Hwang, Mary Anne Jackson, Richard F. Jacobs, Ravi Jhaveri, Kateřina Jirků-Pomajbíková, Jeffrey L. Jones, Mahima Karki, M. Gary Karlowicz, Ben Z. Katz, Ishminder Kaur, Gilbert J. Kersh, Jay S. Keystone, Muhammad Ali Khan, David W. Kimberlin, Martin B. Kleiman, Bruce S. Klein, Karl Klontz, Barbara Knust, Andrew Y. Koh, E. Kent Korgenski, Paul Krogstad, Preeta Krishnan Kutty, Christine T. Lauren, Hillary S. Lawrence, Amy Leber, Grace M. Lee, Eugene Leibovitz, Eyal Leshem, Stéphanie Levasseur, David B. Lewis, Robyn A. Livingston, Eloisa Llata, Sarah S. Long, Ben A. Lopman, Yalda C. Lucero, Jorge Luján-Zilbermann, Katherine Luzuriaga, Noni E. MacDonald, Yvonne A. Maldonado, John Manaloor, Chitra S. Mani, Kalpana Manthiram, Gary S. Marshall, Stacey W. Martin, Almea Matanock, Catalina Matiz, Alison C. Mawle, Tony Mazzulli, Kathleen A. McGann, Kenneth McIntosh, Lucy A. McNamara, Michal Meir, Debrah Meislich, H. Cody Meissner, Elissa Meites, Asunción Mejías, Jussi Mertsola, Kevin Messacar, Mohammed Nael Mhaissen, Marian G. Michaels, Melissa B. Miller, Eric D. Mintz, John F. Modlin, Parvathi Mohan, Susan P. Montgomery, José G. Montoya, Pedro L. Moro, Anna-Barbara Moscicki, R. Lawrence Moss, Angela L. Myers, Simon Nadel, Michael N. Neely, Karen P. Neil, Joanna Nelson, Noele P. Nelson, William L. Nicholson, Victor Nizet, Amy Jo Nopper, Theresa J. Ochoa, Walter A. Orenstein, Miguel O'Ryan, Christopher D. Paddock, Harpreet Pall, Suresh Kumar Panuganti, Diane E. Pappas, Robert F. Pass, Thomas F. Patterson, Monica E. Patton, Stephen I. Pelton, Brett W. Petersen, Larry K. Pickering, Swetha Pinninti, Paul J. Planet, Andrew J. Pollard, Klara M. Posfay-Barbe, Casper S. Poulsen, Susan M. Poutanen, Ann M. Powers, Charles G. Prober, Octavio Ramilo, Shawn J. Rangel, Suchitra Rao, Sarah A. Rawstron, Jennifer S. Read, Michael D. Reed, Ryan F. Relich, Megan E. Reller, Neil Rellosa, Katherine A. Rempe, Melissa A. Reyes, Samuel E. Rice-Townsend, Frank O. Richards, José R. Romero, David A. Rosen, Christina A. Rostad, G. Ingrid J.G. Rours, Janell A. Routh, Anne H. Rowley, Lorry G. Rubin, Edward T. Ryan, Lisa Saiman, Julia S. Sammons, Laura Sass, Jason B. Sauberan, Sarah Schillie, Grant S. Schulert, Jennifer E. Schuster, Kevin L. Schwartz, Bethany K. Sederdahl, Jose A. Serpa, Kara N. Shah, Samir S. Shah, Andi L. Shane, Eugene D. Shapiro, Jana Shaw, Avinash K. Shetty, Linda M. Dairiki, George Kelly Siberry, Jane D. Siegel, Robert David Siegel, Kari A. Simonsen, Nalini Singh, Upinder Singh, P. Brian Smith, John D. Snyder, Eunkyung Song, Jennifer L. Sorrell, Emily Souder, Joseph W. St. Geme, Mary Allen Staat, J. Erin Staples, Jeffrey R. Starke, William J. Steinbach, Christen R. Stensvold, Bradley P. Stoner, Raymond A. Strikas, Jonathan B. Strober, Paul K. Sue, Deanna A. Sutton, Douglas Swanson, Jacqueline E. Tate, Marc Tebruegge, Eyasu H. Teshale, Amelia B. Thompson, George R. Thompson, Robert Thompson-Stone, Richard B. Thomson, Emily A. Thorell, Nicole H. Tobin, Philip Toltzis, James Treat, Stephanie B. Troy, Russell B. Van, Louise Elaine Vaz, Jennifer Vodzak, Ellen R. Wald, Rebecca Wallihan, Zoon Wangu, Matthew Washam, Joshua R. Watson, Rachel L. Wattier, Geoffrey A. Weinberg, A. Clinton White, Harold C. Wiesenfeld, John V. Williams, Rodney E. Willoughby, Sarah L. Wingerter, Robert R. Wittler, Karen K. Wong, Kimberly A. Workowski, Terry W. Wright, Pablo Yagupsky, Catherine Yen, Jumi Yi, Jonathan S. Yoder, Edward J. Young, Andrea L. Zaenglein, and Kanecia Zimmerman

Published
2018
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