Epic data research reveals unvaccinated people more likely to be re-infected with COVID-19

WISC-TV / Channel3000

VERONA, Wisconsin – Data collected by Epic Systems shows that unvaccinated people are about 44% more likely than vaccinated people to contract COVID-19 more than once, according to a study released Tuesday.

Using data collected by hospitals and clinics using Epic software, the researchers found that the average rate of re-infection for unvaccinated people was 2.3 per 10,000 people, compared with 1.6 per 10,000 people vaccinated. This means that data shows the vaccine helped prevent re-infection for 275 vaccinated patients over a one-year period.

Epic vaccine research

Courtesy: Epic Research

Researchers say the data suggests that in addition to the primary benefit of reducing the severity of COVID-19 infection, COVID vaccines appear to have a “modest” advantage in preventing reinfection. These results would be consistent with previous research which found a decreased risk of re-infection in vaccinated people.

Overall, other studies have shown that re-infection is rare and that severe re-infection leading to hospitalization is even rarer.

The research is based on data from Epic’s Cosmos, which is a limited HIPAA-defined dataset that includes more than 120 million patients from 141 organizations using Epic software, covering 832 hospitals and 13,421 clinics in all 50 states. . The immunization status of those affected was verified during face-to-face meetings.

Epic says study included two research teams, each team comprising a clinician and researchers who worked separately but nonetheless came to similar conclusions.

Sean N. Ayres