Resumo

RIOS-OCAMPO, Alfredo et al. Occult hepatitis B virus infection Clinical epidemiological and molecular aspects. Acta Med Colomb [online]. 2013, vol.38, n.3, pp.143-153. ISSN 0120-2448.

Abstract Objective: occult hepatitis B virus infection is characterized by the presence of the viral genome in serum and / or liver tissue samples but without surface antigen detection. The mechanisms of pathogenesis are not fully known. The purpose of this article is to discuss and describe the most important clinical, epidemiological and molecular aspects of this type of infection. Methods: we performed a literature search in PUBMED database of original works and reviews of the subject published between 1979 and 2012. The search was performed using the keywords "occult HBV infection, epidemiology, clinical implications, mechanisms and outcome". Relevant articles cited in the selected publications were also consulted. Conclusions: the identification of cases of occult hepatitis B virus infection and the description of its prevalence is important in preventing transmission of the infection and the development of terminal hepatic diseases. The availability of sensitive and specific methods for the detection of viral genome has allowed us to explore the epidemiology. However, the mechanisms of pathogenesis are still under examination. (Acta Médica Colombiana 2013; 38: 143-153).

Palavras-chave : hepatitis B; occult infection; epidemiology; pathogenesis; HBsAg.

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