MMWR. Morbidity and mortality weekly report · 2021
Laboratory-Confirmed COVID-19 Among Adults Hospitalized with COVID-19-Like Illness with Infection-Induced or mRNA Vaccine-Induced SARS-CoV-2 Immunity - Nine States, January-September 2021.
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Bozio Catherine H, Grannis Shaun J, Naleway Allison L, Ong Toan C, Butterfield Kristen A, DeSilva Malini B, Natarajan Karthik, Yang Duck-Hye, Rao Suchitra, Klein Nicola P, Irving Stephanie A, Dixon Brian E, Dascomb Kristin, Liao I-Chia, Reynolds Sue, McEvoy Charlene, Han Jungmi, Reese Sarah E, Lewis Ned, Fadel William F, Grisel Nancy, Murthy Kempapura, Ferdinands Jill, Kharbanda Anupam B, Mitchell Patrick K, Goddard Kristin, Embi Peter J, Arndorfer Julie, Raiyani Chandni, Patel Palak, Rowley Elizabeth A, Fireman Bruce, Valvi Nimish R, Griggs Eric P, Levy Matthew E, Zerbo Ousseny, Porter Rachael M, Birch Rebecca J, Blanton Lenee, Ball Sarah W, Steffens Andrea, Olson Natalie, Williams Jeremiah, Dickerson Monica, McMorrow Meredith, Schrag Stephanie J, Verani Jennifer R, Fry Alicia M, Azziz-Baumgartner Eduardo, Barron Michelle, Gaglani Manjusha, Thompson Mark G, Stenehjem Edward
Аннотация
Previous infection with SARS-CoV-2 (the virus that causes COVID-19) or COVID-19 vaccination can provide immunity and protection from subsequent SARS-CoV-2 infection and illness. CDC used data from the VISION Network* to examine hospitalizations in adults with COVID-19-like illness and compared the odds of receiving a positive SARS-CoV-2 test result, and thus having laboratory-confirmed COVID-19, between unvaccinated patients with a previous SARS-CoV-2 infection occurring 90-179 days before COVID-19-like illness hospitalization, and patients who were fully vaccinated with an mRNA COVID-19 vaccine 90-179 days before hospitalization with no previous documented SARS-CoV-2 infection. Hospitalized adults aged ≥18 years with COVID-19-like illness were included if they had received testing at least twice: once associated with a COVID-19-like illness hospitalization during January-September 2021 and at least once earlier (since February 1, 2020, and ≥14 days before that hospitalization). Among COVID-19-like illness hospitalizations in persons whose previous infection or vaccination occurred 90-179 days earlier, the odds of laboratory-confirmed COVID-19 (adjusted for sociodemographic and health characteristics) among unvaccinated, previously infected adults were higher than the odds among fully vaccinated recipients of an mRNA COVID-19 vaccine with no previous documented infection (adjusted odds ratio [aOR] = 5.49; 95% confidence interval [CI] = 2.75-10.99). These findings suggest that among hospitalized adults with COVID-19-like illness whose previous infection or vaccination occurred 90-179 days earlier, vaccine-induced immunity was more protective than infection-induced immunity against laboratory-confirmed COVID-19. All eligible persons should be vaccinated against COVID-19 as soon as possible, including unvaccinated persons previously infected with SARS-CoV-2.