An obvious trend of reduction of the HBV prevalence is observed in other traditionally high-risk groups, such as prostitutes, since the percentage of HBsAg-seropositivity (11%) at the early 80s has been reduced to 3.3% in the late 90s; these data need to be reevaluated because of the high percentage of people trafficking for sexual reasons, mainly from countries of median-high HBV prevalence to our country, who are not reported or sanitary controlled and are thought to represent the most significant cause of HBV transmission in our days [ 29 , 30 ].
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New data concerning the epidemiology of Hepatitis B virus infection in Greece.
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