Abstract
Background/aim: We aimed to determine if there is a decrease in antiHBS titer below the protective value during Coronavirus-19 disease (COVID-19). Materials and methods: A prospective study was made of 67 patients who had positive antiHbs values checked in the last 1 year. Demographic data and the previous antiHBs values were collected from the patient files and the laboratory findings of new antiHBs titers checked after one months later following COVID-19 infection were compared with the previous ones. Results: In the postcovid evaluation, a statistically significant decrease in the antiHBs levels of COVID-19 patients was determined with respect to previous values before COVID-19 infection (p<0,001). Conclusion: In our study, we found that there was a statistically significant decrease in AntiHBs levels after COVID-19 infection, but none of them were below protective antiHBs levels. As a result, we can say a booster vaccination against hepatitis B is not needed during or after COVID-19 infection, but it would be appropriate to support it with studies with a higher number of patients.
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