Prevalence of hepatitis A, B, C & D in Ludhiana.

172 sera were tested for serological markers of hepatitis A, hepatitis B, hepatitis C and hepatitis D to define the aetiology of acute viral hepatitis by Enzyme immunoassays. The viral aetiology could be decided in 60.5% (104/ 172) of patients. Hepatitis B infection was present in 34.9%, hepatitis A in 10.5%, hepatitis C in 9.3% and hepatitis D in 5.8% of cases. Delta hepatitis associated with HBsAg positive hepatitis was detected in 10% (6/60) of the patients. The aetiology remained undecided in 39.5% of patients.