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δ抗原抗体系统的存在,决定于乙型肝炎病毒(HBV)。δ抗原的整组基因为小的RNA,它与HBV的DNA无分子生物学的相互关系。δ因子有高度致病性,可引起急性和慢性肝病。乙型肝炎伴有δ因子感染的病情较单纯乙型肝炎为重,其严重性取决于δ因子感染前有无HBV感染。猩猩的实验感染
The presence of the delta antigen antibody system is determined by the presence of Hepatitis B virus (HBV). The entire set of genes for the delta antigen are small RNAs that have no molecular biological relationship to HBV DNA. The delta factor is highly pathogenic and can cause acute and chronic liver disease. Hepatitis B with delta factor infection is more serious than hepatitis B. The severity depends on the presence or absence of HBV infection before delta factor infection. Orangutan experiment infection