نبذة مختصرة : What is already known about this topic? Previous infection with SARS-CoV-2 or COVID-19 vaccination can provide immunity and protection against subsequent SARS-CoV-2 infection and illness. What is added by this report? Among COVID-19–like illness hospitalizations among adults aged ≥18 years whose previous infection or vaccination occurred 90–179 days earlier, the adjusted odds of laboratory-confirmed COVID-19 among unvaccinated adults with previous SARS-CoV-2 infection were 5.49-fold higher than the odds among fully vaccinated recipients of an mRNA COVID-19 vaccine who had no previous documented infection (95% confidence interval = 2.75–10.99). What are the implications for public health practice? All eligible persons should be vaccinated against COVID-19 as soon as possible, including unvaccinated persons previously infected with SARS-CoV-2.
Relation: MMWR. Morbidity and Mortality Weekly Report; Bozio, C. H., Grannis, S. J., Naleway, A. L., Ong, T. C., Butterfield, K. A., DeSilva, M. B., Natarajan, K., Yang, D.-H., Rao, S., Klein, N. P., Irving, S. A., Dixon, B. E., Dascomb, K., Liao, I.-C., Reynolds, S., McEvoy, C., Han, J., Reese, S. E., Lewis, N., … Stenehjem, E. (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. MMWR. Morbidity and Mortality Weekly Report, 70(44), 1539–1544. https://doi.org/10.15585/mmwr.mm7044e1; 0149-2195, 1545-861X; https://hdl.handle.net/1805/27933
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