title: [Routes of transmission of hepatitis B in Piotrokow and Sieradz provinces in 1986-1987].
abstract: Epidemiological investigations of 1883 cases of acute viral hepatitis type B reported in two voivodships (Piotrków, Sieradz) has been analysed. In 1104 cases (58%) parenteral procedures for therapeutical and diagnostic purposes have been performed during 6 months before the onset of disease. The incidence of cases after medical procedures was the highest in children aged 0-4 years (67%) and adult persons aged over 50 years (68%). Home contacts with HBV carriers and/or recoverers gave only 342 cases (18.2%). Professional infections occurred in 117 medical workers (6.2%). At that time both voivodship had high hepatitis B morbidity ranging 91.7/100,000 in Piotrków voivodship in 1986 over two times higher than in the whole country (38.9/100,000).
authors.affiliation: Zakład Epidemiologii Państwowego Zakładu Higieny w Warszawie.
authors.forename: J
authors.initials: J
authors.lastname: Zabicka
authors.forename: J
authors.initials: J
authors.lastname: Hildebrandt
authors.forename: B
authors.initials: B
authors.lastname: Piasecka
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology / Q000635:transmission*; D006801:Humans; D015994:Incidence; D007223:Infant; D008297:Male; D008875:Middle Aged; D011044:Poland / Q000453:epidemiology
vernacular_title: Drogi szerzenia sie wzw B w woj. piotrkowskim i sieradzkim w latach 1986-1987.