title: Development of vaccination immunity in hospital personnel revaccinated at three-year intervals.
mesh_terms: D000328:Adult; D000914:Antibodies, Viral / Q000032:analysis; D000917:Antibody Formation; D002675:Child, Preschool; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D006814:Hungary; D007117:Immunization, Secondary; D007223:Infant; D008297:Male; D008875:Middle Aged; D009500:Neutralization Tests; D010564:Personnel, Hospital; D012899:Smallpox / Q000276:immunology* / Q000517:prevention & control; D012900:Smallpox Vaccine; D014611:Vaccination; D014616:Vaccinia virus / Q000276:immunology
chemical_list: D000914:Antibodies, Viral; D012900:Smallpox Vaccine