Abstract:A new antigenic specificity for HBsAg is described, and its usefulness as an
epidemiological marker is discussed. This specificity, l , was found in specimens from all geographic
areas studied (United States, Latin America, South Africa, the Solomon Islands, and
New Guinea). In these areas, l was strongly associated with HBsAg/ay; y-positive, l-negative
samples were observed only among specimens from United States volunteer blood donors.
This determinant allowed a distinction of HBsAg/ad classes. Thus, the l d… Show more
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