几年来,我国在传染性肝炎的调查研究和防治方面作出了很大的成绩,积累了很多资料。虽然如此,直到目前本病尚存在一些主要问题来彻底解决,如黄疸型与无黄疸型之间的关系;病人传染期的长短和不同时期传染性的大小;本病在人群中流行的自然趋势等。关于最后一个问题, Over the past few years, China has made great achievements in the investigation and prevention and treatment of infectious hepatitis and has accumulated a great deal of information. However, until now, there are still some main problems in this disease such as jaundice and jaundice, the length of the infection period and the contagious size in different periods. The natural tendency of the disease in the population Wait. On the last question,