论文部分内容阅读
甲型肝炎爆发与日托中心、污染的食物、人与人接触传染和供水污染有关.由于甲型肝炎病毒(HAV)有较长的潜伏期以及有些病人(尤其是儿童)症状轻微或缺乏症状,因此很难判定甲型肝炎爆发的原因.1989年8月的一个周末,美国路易斯安那州的一个野营地爆发了甲型肝炎.作者对本次爆发的传播方式进行了流行病学调查.野营地有5个游泳池:
Hepatitis A outbreaks are associated with day-care centers, contaminated food, human-to-human contagion, and water supply contamination.As Hepatitis A virus (HAV) has a long incubation period and some patients (especially children) have mild or poor symptoms, It is therefore difficult to determine the cause of the outbreak of hepatitis A. One weekend in August 1989, an outbreak of hepatitis A occurred in a campground in Louisiana, United States. The authors conducted an epidemiological investigation of the mode of transmission of the outbreak. There are 5 swimming pools: