States reported that an increasing proportion of people had been reinfected two times, with some people facing reinfection three, four, and on very rare occasions, even five times.
People walk past a Covid testing site, May 17, 2022, in New York City.this past January, Jennifer McDonnell was relieved to think that she, and her family, could finally return to normal life, with a potentially strong immune protection stemming from both vaccination and a past infection.
Now, three weeks after testing positive, McDonnell said that she still does not feel like herself, with this second round of COVID-19 feeling “way worse” than the first. Definitions of reinfection vary by state.Although health officials stressed that reinfections are likely significantly undercounted due to lack of reporting and home testing, overall, reinfections still represent a small share of the total number of cases reported across states.
Symptoms during reinfection have been found to be less severe than during the initial infection, the CDC wrote, but some individuals may still experience more severe forms of disease. “The frequency of false positive test results is under-appreciated, so I often repeat the test in patients who are presenting with what appears to be a reinfection within a relatively short period of time — like 6 months — and frequently that repeat test is negative, but when it's positive, we don't have a way to know if the earlier one could have been a false positive,” Doron explained. “Reinfection does happen.
“Each new variant and subvariant and sub-subvariant is going to have different ability to break through prior immunity, and prior immunity from vaccination and infection is so variable between individuals,” Doron explained. How long people are truly protected against reinfection, following a COVID-19 diagnosis, is still a major question on the mind of many scientists, Doron said.
Breakthrough infections — vaccinated people getting COVID-19 - were exceedingly rare, let alone reinfections.
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