Abstract:
In order to examine the infective rate of HAV,HBV,HCV and HIV,a serological study of 53,496 plasma samples colleted from 7 plasma stations during 1993-1995 was carried out with ELISA.The result indicated that unserviceable rates of the plasma samples were 7.4%,11.66% and 7.03% in 1993,1994 and 1995 respectively.The infections of HAV,HBV,HCV and HIV existed in the plasm donors.The infective rates were 0.72%,2.81%,3.04% and 1.08% respectively.The infective rate of HCV in city was higher than that in rural area.