Both vaccination and prior infection help protect against new Covid-19 infections, but vaccination protects against hospitalization significantly more than natural immunity from prior infection alone, according to a CDC study
Both vaccination and prior infection help protect against new Covid-19 infections, but vaccination protects against hospitalization significantly more than natural immunity from prior infection alone, according to a study published Wednesday by the US Centers for Disease Control and Prevention.
"Although the epidemiology of COVID-19 might change as new variants emerge, vaccination remains the safest strategy for averting future SARS-CoV-2 infections, hospitalizations, long-term sequelae, and death," the researchers wrote.Researchers analyzed the risk of Covid-19 infection and hospitalization among four groups of individuals: vaccinated with and without prior infection and unvaccinated with and without prior infection. The study case data from about 1.
Throughout the period of the study, risk of Covid-19 hospitalization was significantly higher among unvaccinated people with no previous Covid-19 diagnosis than any other group. "Together, the totality of the evidence suggests really that both vaccination and having survived Covid each provide protection against subsequent reinfection, infection and hospitalization," said Dr. Eli Rosenberg, New York State Deputy Director for Science.
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