Get full text report (pdf file; Read by ADOBE Acrobat Reader)
J Occup Health year 2000 volume 42 number 6 page 341 - 344
Classification Field Study
Title Prevalence of Hepatitis B Virus Infection in a Population Exposed to Biological Risk
Author Andrea TREVISAN and Paolo PARUZZOLO
Organization Department of Environmental Medicine and Public Health, University of Padova
Keywords Biological risk, Hepatitis B infection
Correspondence A. Trevisan, Department of Environmental Medicine and Public Health, University of Padova, Via Giustiniani 2, I-35128 Padova, Italy
Abstract Prevalence of Hepatitis B Virus Infection in a Population Exposed to Biological Risk: Andrea TREVISAN, et al. Department of Environmental Medicine and Public Health, University of Padova-The prevalence of hepatitis B virus infection was investigated in 1,221 subjects (809 exposed to different degrees of biological risk and 412 presumably not exposed personnel) employed in Padua University. The population was subdivided in four groups according to no, low and occasional, intermediate, even though continuous, and high exposure to biological risk. A past history of hepatitis B virus infection was detected in 10.0% of subjects (8.8% had positive hepatitis B antibodies, 1.1% positive hepatitis B surface antigens and 0.2% positive hepatitis B enveloped antigen). Seroprevalence of positive hepatitis B antibodies increased with age (p<0.001) but was not related with sex. No significantly high prevalence of hepatitis B virus infection was found among the groups, but excluding vaccinated subjects (333, 27.3%), the prevalence was significantly higher in intermediate (p<0.025) and the high (p<0.001) risk groups when compared with the other two groups, other than in high compared with the intermediate risk group (p<0.05). The results show low prevalence (10.0%) of hepatitis B virus infection in the examined population, but increasing according to the risk extent.