Hepatitis C ; epidemiology ; Humans

China ; epidemiology ; Hepatitis A ; epidemiology ; Hepatitis E ; epidemiology ; Humans

The study has determined the seroprevalence and the risk factors of C and B hepatitis virus infection among cambodian patients visited to HCM city University Medical Centre. Results found an endemic prevalence of 19.74% of anti HCV(+) serum, anti-HBC(+) 74.84%, 15.84% HBsAg(+). 3.04% of anti-HCV(+) and HBsAg. Risk factors for HCV infection are concentration campain staying, traditional acupuncture, multiple sex partners injecting glass syringes.
Hepatitis C ; Hepatitis B ; Risk Factors ; epidemiology

China ; epidemiology ; Hepatitis, Viral, Human ; epidemiology ; Humans

China ; epidemiology ; Disease Outbreaks ; Hepatitis A ; epidemiology ; Humans

115/400 Muong minority pupils of boarding school in Hoa Binh province, all studied subjects have 3 genarations of Muong minority (grandparents, parents and themshelves being Muong minority), from 15 to 19 years old. Using Sero check product of USA to examine the ratio of HBsAg. Results: 19.05% of the boys having HBsAg(+), 13.38% of the girls having HBsAg(+). So the ratio of HBsAg(+) in girls are lower than in boys but it is not significant. The ratio of HBsAg(+) at the age of 15 is 19.61%, the age of 16-17 is 14.74% and the age of 18-19 is 16.67%, there is not significant between groups
Hepatitis B virus ; Epidemiology ; Pupil

No abstract available.
Hepatitis C, Chronic/*epidemiology ; Humans

323 patients with hepatitis and cirrhosis (244 males, 89 females admitted into the clinical Institute of Tropical diseases from Jan 2001 to August 2002 were studied on. Result showed that: in Hanoi, hepatitis patients were infected with C hepatitis virus of the types 1a, 1b, 6a. The incidence of various HCV genes was not different in deverse age groups, places, occupations, marital status of the patients, but the differences were noted according to the gender, the education level, the history of drug use and blood transfusion.
Hepatitis C ; Fibrosis ; Epidemiology, Molecular

No abstract available.
*Disease Outbreaks ; *Endemic Diseases ; Hepatitis A/*epidemiology ; Hepatitis B/*epidemiology ; Hepatitis C/*epidemiology ; Humans

OBJECTIVETo study HIV, HBV and HCV infections in intravenous drug users.

METHODS2025 blood samples from intravenous drug users were collected from Sichuan, Hunan, Guangxi and Xinjiang regions, and tested for anti-HIV, anti-HCV, HBsAg using enzyme-linked immuno-sobent assays (ELISAs).

RESULTSThe positive rates of anti-HIV,anti-HCV and HBsAg were14.7%-30.4%, 60.7%-85.5% and 6.6%-22.4% in the intravenous drug users, respectively. The co-infection rates of HIV/HBV, HIV/HCV, HCV/HBV and HIV/HCV/HBV were 0%-0.4%, 11.6%-27.2%, 2.3%-14.3% and 1.6%-4.8% respectively in this population.

CONCLUSIONThe infection rates of HIV, HBV and HCV were higher in the intravenous drug users than that in general populations in the same regions, and HIV/HCV co-infection appeared most frequent in this population.

China ; epidemiology ; HIV Infections ; epidemiology ; Hepatitis B ; epidemiology ; Hepatitis C ; epidemiology ; Humans ; Prevalence ; Substance Abuse, Intravenous