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COVID shots more protective than past infection, study shows

Study looked at data from nearly 190 hospitals in 9 states
Posted at 5:49 PM, Oct 30, 2021
and last updated 2021-10-31 14:17:28-04

NEW YORK — Health officials say they have more evidence that vaccinations can offer better protection against COVID-19 than natural immunity from a prior infection.


A new study found that unvaccinated people who had been infected months earlier were five times more likely to get COVID months than fully vaccinated people who did not have a prior infection.

The study reviewed more than 7,000 people across nine states, measuring infections and hospitalization rates three to six months after either vaccination or initial infection. The study was published in the CDC's weekly journal, the MMWR.

The Centers for Disease Control and Prevention led the study and released it Friday.