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乙型肝炎病毒在人群中常以无症状携带状态存在。高度传染性的携带乙型肝炎病毒母亲在分娩时,通过血液污染而将病毒传播给新生儿,更助长了感染的延续存在,因为新生儿(可能由于免疫系统未成熟)通常发展成持续性无症状的乙型肝炎病毒携带者。
Hepatitis B virus is often present in asymptomatic carriers in the human population. Highly contagious hepatitis B virus-carrying mothers transmitting the virus through blood contamination to newborns during childbirth further contribute to the continuation of the infection, as newborns (which may be immature due to the immune system) usually develop persistent Symptoms of hepatitis B virus carriers.