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Document ID (ISN)64904
CIS number 95-1518
ISSN - Serial title 1250-3274 - Archives des maladies professionnelles et de médecine du travail
Year 1995
Convention or series no.
Author(s) Schlosser O., Roudot-Thoraval F.
Title Occupational exposure to sewage and hepatitis A risk
Original title Exposition professionnelle aux eaux usées et risque d'hépatite virale A [in French]
Bibliographic information 1995, Vol.56, No.1, p.23-27. Illus. 23 ref.
Abstract The availability of a first hepatitis A vaccine in 1992 raised the issue of its use among sewage workers. A cross-sectional study was made to estimate the occupational hazard of hepatitis A comparing the prevalence of antibodies to the hepatitis A virus (HAV) in 110 workers exposed to sewage with the prevalence in 110 non-exposed controls from the same firm, matched for age and educational level. History of jaundice, travelling in endemic areas and duration of occupational exposure were noted. The seroprevalence of HAV antibodies was 52.7% globally, significantly higher in exposed workers (60.9%) than in controls (44.5%) (p<0.02). This seroprevalence increased with age, and was related to educational level in each group. These results emphasize the role of occupational exposure to sewage in HAV infection. The vaccination of exposed workers is to be recommended because of the frequency of the symptomatic form of hepatitis A in adults, sometimes of considerable severity.
Descriptors (primary) antibodies; infectious hepatitis; sewage treatment; immunization; hazard evaluation
Descriptors (secondary) infectious diseases; vaccination; cross-sectional study; epidemiologic study
Document type D - Periodical articles
Country / State or ProvinceFrance
Subject(s) Toxic and dangerous substances
Broad subject area(s) Biological hazards
Browse category(ies) Liver diseases
Risk evaluation
Bacterial and parasitic diseases
Viral diseases (other than aids)