Prevalence of hepatitis B and hepatitis C viral infections in Indian patients with chronic renal failure.

The present study reports prevalence of posttransplant hepatitis B virus (HBV) and hepatitis C virus (HCV) infection in 256 patients with chronic renal failure (CRF) and with a history of either renal transplant or hemodialysis. Out of 256 patients 138 had renal transplant and 118 were on maintenance hemodialysis. Among the patients screened, 7% had HBV infection alone, 46% were infected with HCV alone, while 37.10% were found to have co-infection of both the viruses. Our findings implicate these viruses as the major cause of posttransplant hepatitis in Indian patients with CRF and indicate implementation of stringent screening procedures for these two viral infections.

Prevalence, risk factors and genotype distribution of HCV and HBV infection in the tribal population: a community based study in south India.

Viral hepatitis caused by the hepatitis C virus (HCV) and hepatitis B virus (HBV) represents a major public health problem in India. These viruses share common modes of transmission, such as parenteral routes. We aimed to assess the exposure of a tribal population to these viruses in south India. The present study was carried out on serum samples from 890 individuals (526 males and 324 females) belonging to the Lambada tribe residing in the state of Andhra Pradesh, south India. Anti-HCV antibody and hepatitis B surface antigen (HBsAg) status in the sera were analyzed using commercially available enzyme immunoassays (Abbott Labs, Chicago, IL). HCV-RNA and HBV-DNA in the sera was tested by reverse transcriptase polymerase chain reaction (RT-PCR) and PCR, respectively. The infecting genotype of HCV was determined using type-specific primers corresponding to the NS5 region of the virus. Out of the 890 samples, 18 (2.02%; male 11/526; female 7/364) were positive for HCV-RNA by RT-PCR and, 17 of them were positive for anti-HCV antibody. Genotyping of HCV isolates from the 18 individuals positive for HCV-RNA revealed that 66.67% (12/18) were infected with type 1 of HCV and its variants; while in the remaining (6/18), the infecting genotype was found to be type 3 and its variants. A total of 46 samples (5.16%; males 28/526; female 18/364) were positive for HBsAg; while 11 were positive only for HBV-DNA, 9 were positive for both hepatitis B e antigen (HBeAg) and HBV-DNA. Cultural practices such as tattooing, traditional medicine (e.g. blood-letting), rituals (e.g. scarification), body-piercing etc are the potential sources of spread of infection in this tribe. None of the samples analyzed revealed co-infection with the 2 viruses.