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  • Title: [Retrospective review of the prevalence of hepatitis B virus in several population groups].
    Author: Salom I, Román S, Macaya G, Fonseca J, Brenes F, Mora C, Martén A.
    Journal: Rev Biol Trop; 1990 Jun; 38(1):83-6. PubMed ID: 2093953.
    Abstract:
    Nine different groups of individuals studied from 1969 to 1985 were tested for Hepatitis B Virus (HBV) markers. In 8 groups only HBsAg in serum was tested, in another group: tissular HBsAg, and in two of those groups: serum HBsAg, anti-HBs and anti-HBc. Mean HBsAg prevalence in groups similar to general population was 0.64%; 5% in cirrhotics; HBV prevalence in haemophiliacs was 18.87% by testing serum for HBsAg and anti-HBs; serum HBsAg prevalence in Viral Chronic Active Hepatitis was 43.24%; and Hepatocellular Cancer (HCC) group had a prevalence for HBV of 13.04% when only tissular HBsAg was tested, and 54.29% when serum HBsAg, anti-HBs and anti-HBc were tested in all patients. Costa Rica has a low HBV markers prevalence only similar to what is found in industrial developed countries.
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