Sars-cov-2 antibody response after mrna vaccination in healthcare workers with and without previous covid-19, a follow-up study from a university hospital in poland during 6 months

HIGHLIGHTS

SUMMARY

The aim of the study was to determine the level of antibodies against SARS-CoV-2 in HCWs before and after vaccination with mRNA preparations according to previous COVID- 19. At baseline, 41.1% of HCWs had positive antibody test results, and at follow-up, the vaccinated HCWs had almost 100 times higher antibody levels than the unvaccinated HCWs. Among frontiersin.org 10.3389/fimmu.2022.1071204 participants with positive antibody test results in January, HCWs who had experienced asymptomatic COVID-19 had more than five times higher antibody levels in June than HCWs . . .

 



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