PPIB and hepatitis A virus infection: In this study, the prevalence was lower than that found in the same municipality, when aprevalence of 59.9% was found for full hepatitis B vaccination among PHC andmedium-complexity health personnel.7 In anstudy involving nursing professionals in a public hospital in Paraíba, Brazil, 65.7%reported that they were fully vaccinated against hepatitis B.14 In Feira de Santana, Bahia, Brazil, the prevalence of fullhepatitis B vaccination was 69.8%.13 Tus,hepatitis B vaccination coverage is less than ideal, not only in this study but also inother Brazilian municipalities.