A new study indicates that the rate of re-infection of COVID is higher for those who are considered fully vaccinated.
“Surprisingly, two or more doses of vaccine were associated with a slightly higher probability of re-infection compared with one dose or less,” researchers concluded.
In fact, they found the highest rate of re-infection was for 18 to 29-year-olds who’d received two or more vaccines.
However, researchers advised the variance between the groups to be interpreted “with caution” due to the limitations of the study.
As per the study, researchers covered over 12 months of data between 2021 and 2022 and more than 11,000 people who’d had COVID. Ultimately, they found that re-infection was “more common than previously thought.”
“Reinfection was observed in 1327 persons (11.5%) during the Omicron period. Of those who had received 1 dose or less of vaccine, 11.7% (1007 of 8598 individuals) were re-infected, compared with 10.9% (320 of 2938 individuals) who had received 2 or more doses. The reinfection rate was highest (475 of 3136 individuals [15.1%]) among those aged 18 to 29 years. Fewer reinfections occurred among older individuals,” researchers report.