@article{5cdc197f7ba1476bae8ed8a9e481cd27,
title = "Effectiveness of mRNA Vaccines Against COVID-19 Hospitalization by Age and Chronic Medical Conditions Burden Among Immunocompetent US Adults, March-August 2021",
abstract = "Vaccine effectiveness (VE) against COVID-19 hospitalization was evaluated among immunocompetent adults (≥18 years) during March-August 2021 using a case-control design. Among 1669 hospitalized COVID-19 cases (11% fully vaccinated) and 1950 RT-PCR-negative controls (54% fully vaccinated), VE was 96% (95% confidence interval [CI], 93%-98%) among patients with no chronic medical conditions and 83% (95% CI, 76%-88%) among patients with ≥ 3 categories of conditions. VE was similar between those aged 18-64 years versus ≥65 years (P >. 05). VE against severe COVID-19 was very high among adults without chronic conditions and lessened with increasing comorbidity burden.",
keywords = "COVID-19, chronic medical conditions, preexisting conditions, vaccine effectiveness",
author = "{IVY Network Collaborators} and Lewis, {Nathaniel M.} and Naioti, {Eric A.} and Self, {Wesley H.} and Ginde, {Adit A.} and Douin, {David J.} and {Keipp Talbot}, H. and Casey, {Jonathan D.} and Mohr, {Nicholas M.} and Anne Zepeski and Manjusha Gaglani and Ghamande, {Shekhar A.} and McNeal, {Tresa A.} and Shapiro, {Nathan I.} and Gibbs, {Kevin W.} and {Clark Files}, D. and Hager, {David N.} and Arber Shehu and Prekker, {Matthew E.} and Erickson, {Heidi L.} and Gong, {Michelle N.} and Amira Mohamed and Henning, {Daniel J.} and Steingrub, {Jay S.} and Peltan, {Ithan D.} and Brown, {Samuel M.} and Martin, {Emily T.} and Kinsley Hubel and Hough, {Catherine L.} and Busse, {Laurence W.} and {Ten Lohuis}, {Caitlin C.} and Abhijit Duggal and Wilson, {Jennifer G.} and Gordon, {Alexandra J.} and Nida Qadir and Chang, {Steven Y.} and Christopher Mallow and Carolina Rivas and Babcock, {Hilary M.} and Kwon, {Jennie H.} and Exline, {Matthew C.} and Natasha Halasa and Chappell, {James D.} and Lauring, {Adam S.} and Grijalva, {Carlos G.} and Rice, {Todd W.} and Rhoads, {Jillian P.} and Stubblefield, {William B.} and Adrienne Baughman and Womack, {Kelsey N.} and Lindsell, {Christopher J.} and Hart, {Kimberly W.} and Yuwei Zhu and Schrag, {Stephanie J.} and Miwako Kobayashi and Verani, {Jennifer R.} and Patel, {Manish M.} and Tenforde, {Mark W.} and Tresa McNeal and Shekhar Ghamande and Nicole Calhoun and Kempapura Murthy and Judy Herrick and Amanda McKillop and Eric Hoffman and Martha Zayed and Michael Smith and Natalie Settele and Jason Ettlinger and Elisa Priest and Jennifer Thomas and Alejandro Arroliga and Madhava Beeram and Ryan Kindle and Kozikowski, {Lori Ann} and {De Souza}, Lesley and Scott Ouellette and Sherell Thornton-Thompson and Patrick Tyler and Omar Mehkri and Meg Mitchell and Connery Brennan and Kiran Ashok and Bryan Poynter and Nicholas Stanley and Audrey Hendrickson and Sean Caspers and Tyler Scharber and Jeffrey Jorgensen and Robert Bowers and Jennifer King and Valerie Aston and Brent Armbruster and Rothman, {Richard E.} and Rahul Nair and Chen, {Jen Ting Tina} and Sarah Karow and Emily Robart and Maldonado, {Paulo Nunes} and Maryiam Khan and Preston So and Joe Levitt and Cynthia Perez and Anita Visweswaran and Jonasel Roque and Trevor Frankel and Omai Garner and Sukantha Chandrasekaran and Jennifer Goff and David Huynh and Adit Ginder and David Douin and Kelly Jensen and Conner Driver and Michael Carricato and Ian Chambers and Paul Nassar and Lori Stout and Zita Sibenaller and Alicia Walter and Jasmine Mares and Logan Olson and Bradley Clinansmith and Hayley Gershengorn and McSpadden, {E. J.} and Rachel Truscon and Anne Kaniclides and Lara Thomas and Ramsay Bielak and Valvano, {Weronika Damek} and Rebecca Fong and Fitzsimmons, {William J.} and Christopher Blair and Valesano, {Andrew L.} and Julie Gilbert and Akram Khan and Olivia Krol and Zachary Zouyed and Emma Silverman and Genesis Briceno and Emmanuel Mills and Crider, {Christine D.} and Steinbock, {Kyle A.} and Paulson, {Thomas C.} and Anderson, {Layla A.} and Christy Kampe and Jakea Johnson and Rendie McHenry and Marcia Blair and Laura Short and Mary Larose and Leigha Landreth and Madeline Hicks and Lisa Parks and Jahnavi Bongu and David McDonald and Candice Cass and Sondra Seiler and David Park and Tiffany Hink and Meghan Wallace and Burnham, {Carey Ann} and Arter, {Olivia G.}",
note = "Publisher Copyright: {\textcopyright} 2021 Published by Oxford University Press for the Infectious Diseases Society of America 2021.",
year = "2022",
month = may,
day = "15",
doi = "10.1093/infdis/jiab619",
language = "English",
volume = "225",
pages = "1694--1700",
journal = "Journal of Infectious Diseases",
issn = "0022-1899",
number = "10",
}