1.新生儿肝炎多数为胎儿在宫内由病毒感染所致，国际上所指的CROTCHS或TORCH感染（即巨细胞病毒、风疹病毒、弓形虫、柯萨奇和其他肠道病毒、单纯疱疹和乙肝病毒、HIV以及其他病毒）均可为新生儿肝炎的病因。
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