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甲型肝炎 (甲肝 )是由甲型肝炎病毒 (HAV )引起的传染病 ,HAV是直径约 2 7～ 3 2nm大小的核糖核酸病毒[1 ] ,妊娠妇女感染甲肝机会与普通人相似。传染源为甲肝患者 ,从粪便中排出病原体 ,起病前 2周至起病后 1周排出的HAV数量最多。传播途径以粪 口为主要的途径。粪 口传播的
Hepatitis A (Hepatitis A) is an infectious disease caused by Hepatitis A virus (HAV). HAV is a ribonucleic acid virus of about 27 to 32 nm in diameter. Pregnant women have a chance of being infected with hepatitis A similar to the general population. Hepatitis A is the source of the infection, and the pathogen is excreted in the excrement. The number of HAVs excreted in the two weeks before the onset to the first week after onset is the highest. Route of transmission to the fecal exit as the main route. Dung mouth spread