Aug 6, 2021 - Health

CDC: Unvaccinated people more than twice as likely to get reinfected

Picture of a nurse administering the vaccine on a patient.
Photo: Spencer Platt/Getty Images

Unvaccinated people are more than twice as likely to be reinfected with the coronavirus compared to those who are vaccinated, per a study from the CDC released Friday.

State of play: The research found that unvaccinated people were "significantly" more likely to get reinfected with COVID — more specifically 2.34 times more.

  • Immunity from natural infection is suspected to last roughly 90 days, the CDC said.
  • The agency added that the emergence of new variants might affect how long this immunity lasts.

Details: The study involved 246 Kentucky residents who were reinfected between May and June.

  • Of note: At the time the study was taken, the Delta variant was not yet the dominant strain in the U.S.

What they're saying: The study's results "suggest that among persons with previous SARS-CoV-2 infection, full vaccination provides additional protection against reinfection. To reduce their risk of infection, all eligible persons should be offered vaccination, even if they have been previously infected with SARS-CoV-2," the CDC said.

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