Objective To evaluate the risk of hepatitis A virus (HAV) infection among sewage workers from occupational exposure to raw sewage.
Methods An analytical cross sectional study of 241 company employees with possible occupational exposure to sewage in a large water and sewerage company was carried out.
Previous exposure to hepatitis A virus infection was assessed, as were its associations with possible risk factors.
Results Frequent occupational exposure to raw sewage was a significant risk factor for HAV infection, independently of other known risk factors (odds ratio 3.73,95% confidence interval 1.48 to 9.37).
Of 50 employees who reported occupational exposure to raw sewage most of the time, 30 (60%) had had HAV infection.
Conclusion-Employees who are likely to be at risk of frequent exposure should have their immunity ensured.
The salivary assay for IgG anti-HAV used in the study was highly specific and would be suitable for prevaccination testing of older employees, who are more likely to be immune.
Mots-clés Pascal : Station épuration, Boue résiduaire, Exposition professionnelle, Médecine travail, Facteur risque, Hépatite virale A, Virose, Infection, Homme, Royaume Uni, Europe, Vaccination, Prévention, Appareil digestif pathologie, Foie pathologie
Mots-clés Pascal anglais : Sewage treatment plant, Sewage sludge, Occupational exposure, Occupational medicine, Risk factor, Viral hepatitis A, Viral disease, Infection, Human, United Kingdom, Europe, Vaccination, Prevention, Digestive diseases, Hepatic disease
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0431696
Code Inist : 002B05C02G. Création : 25/01/1999.