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1甲型肝炎这是由甲型肝炎病毒(HAV)引起的一种肠道传染病。病毒主要通过粪-口途径引起人类感染,但大多数人感染后表现为隐性感染,仅少数表现为急性甲型肝炎。病后一般可完全恢复,不转为慢性肝炎,亦无慢性携带者。A传播方式:病毒通过被污染的水和食物经消化道传播,传染源多为病人。潜伏期15~50天,平均28天。B临床表现:典型的甲型肝炎常有较明显的黄疸前期、黄疸期及恢复期。(1)黄疸前期:出现发热、乏力、不适、肌痛、厌食、恶心、呕吐及右上腹疼痛等症状,这一时期可持续几天或1
Hepatitis A This is an intestinal infectious disease caused by the Hepatitis A virus (HAV). The virus mainly causes human infection through the fecal-oral route, but most people show latent infection after infection, and only a few show acute hepatitis A. After the illness can be completely restored, not to chronic hepatitis, no chronic carriers. A mode of transmission: the virus spread through contaminated water and food through the digestive tract, the source of infection for the patient. The incubation period of 15 to 50 days, an average of 28 days. B Clinical manifestations: A typical hepatitis A often more obvious jaundice, jaundice and convalescence. (1) pre-jaundice: fever, fatigue, discomfort, myalgia, anorexia, nausea, vomiting and right upper quadrant pain and other symptoms, this period can last a few days or 1