>During May–November 2021, case and
hospitalization rates were highest
among persons who were
unvaccinated without a previous
diagnosis. Before Delta became the
predominant variant in June, case rates were higher among persons
who survived a previous infection
than persons who were vaccinated
alone. By early October, persons who
survived a previous infection had
lower case rates than persons who were vaccinated alone.
And
>What are the implications for public health practice? 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. Primary vaccination,
additional doses, and booster doses
are recommended for all eligible
persons. Additional future
recommendations for vaccine doses
might be warranted as the virus and immunity levels change.
>During May–November 2021, case and hospitalization rates were highest among persons who were unvaccinated without a previous diagnosis. Before Delta became the predominant variant in June, case rates were higher among persons who survived a previous infection than persons who were vaccinated alone. By early October, persons who survived a previous infection had lower case rates than persons who were vaccinated alone.
And
>What are the implications for public health practice? 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. Primary vaccination, additional doses, and booster doses are recommended for all eligible persons. Additional future recommendations for vaccine doses might be warranted as the virus and immunity levels change.