Bangladesh Medical Research Council (BMRC)
Prevalence oI asymplomatic Hepalilis B carier state varies in different countries. Surgical procdures are an important mode of dissemination of Hepatitis B virus infection. Five hundred patienls whose HBsAg slatus was not known and had underoone a major operalve procedure n lhe ohaka Medica Colege Hospiia were screencd lor HBsaq. of these,43 (36%)were lound lo be HBsAg positive.