Abstract

GARCIA-SOLANO, Zaida. Serologic diagnostic of Hepatitis type B. Acta méd. costarric [online]. 2008, vol.50, suppl.3, pp.16-21. ISSN 0001-6002.

The hepatitis B surface antigen (HBsAg), the hepatitis B core antigen (HBcAg), the hepatitis B e antigen (HBeAg) and its antibodies such as the anti-HBs, the anticore (HBcAb), the IG M anticore (HBcAb Ig M), the total anticore; and the anti HBe (HBeAb) are found to be the most important among several serological markers for hepatitis B virus. The seroprevalence of hepatitis B virus was measured based on the presence of surface antigen. Any country is considered highly prevalent if the levels of the population under study are higher than 8%. The prevalence is considered intermediate if levels are between 2 and 8%; and it is low if they are less than 2%. The Caja Costarricense de Seguro Social relies on a network of 98 laboratories each with the necessary equipment to find out the antigens and antibodies of hepatitis B virus. A study carried out in 2005 determined a surface antigen seroprevalence of 0.1% in all the country. Therefore, Costa Rica has been ranked as a country with low incidence of HBV. It has also been determined that San Isidro del General holds an intermediate seroprevalence of HBsAg. The American Pathologists College executes an external control for CCSS regarding the laboratory techniques used to determine and control the hepatitis B virus. The appearance of the different antigens and antibodies mentioned is related to clinical moments that are explained. It is also considered as important, the persistence of surface antigen for more than 6 months as a chronic carrier.

Keywords : CAP; College of American Pathologists.

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