CDC Study: Natural Immunity Provides Significantly More Protection Against COVID Than Vaccination Only
A study by the Centers for Disease Control and Prevention released on Wednesday shows that those who have recovered from COVID-19 have more protection against infection than those who have only been vaccinated.
Researchers reviewed data from California and New York from May to November, when the delta variant was dominant in the U.S.
The study looked at four groups of people: unvaccinated with no prior COVID-19 infection, vaccinated with no prior infection, unvaccinated who recovered from COVID-19, and vaccinated who recovered.
By the first week of October, COVID-19 rates among the vaccinated with no previous infection were 6.2 times lower in California and 4.5 times lower in New York than among the unvaccinated with no previous infection.
However, among the unvaccinated with a previous infection, the COVID-19 rate was 29 times lower in California and 14.7 times lower in New York.
The individuals most protected against infection were those who had previously had COVID-19 and were also vaccinated. Their infection rate was 32.5 times lower in California and 19.8 times lower in New York. – READ MORE
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