incidence of different types of viral hepatitis in delhi, uttar pradesh and rajasthan areas. | a total of 428 sera samples from patients of acute sporadic viral hepatitis collected from delhi (172), uttar pradesh (192) and rajasthan (64) were tested for hepatitis a virus (hav) and hepatitis b virus (hbv) markers. non a non b was diagnosed by exclusion. the prevalence of hav, hbv and non a non b in such cases was almost comparable at three places. the prevalence of hav ranged between 15.7 and 20.3 per cent, hbv between 41.3 and 51.6 per cent while non a non b ranged between 28.1 and 43 per ... | 1990 | 2129122 |