title: [Viral hepatitis in a closed institution, I. Epidemiologic characterization of the focus].
mesh_terms: D000328:Adult; D003428:Cross Infection; D006506:Hepatitis A / Q000201:enzymology / Q000453:epidemiology*; D006511:Hepatitis B Antigens; D006515:Hepatitis B virus / Q000472:pathogenicity; D006801:Humans; D008297:Male; D008875:Middle Aged; D011044:Poland; D013997:Time Factors; D014611:Vaccination / Q000009:adverse effects
chemical_list: D006511:Hepatitis B Antigens
vernacular_title: Wirusowe zapalenie watroby w zakładzie zamknietym. I. Charakterystyka epidemiologiczna ogniska.