| prevalence of antibodies against hepatitis a virus, hepatitis b virus, and treponema pallidum in mauritius. | a seroepidemiological study on the prevalence of antibodies against hepatitis a virus (hav), hepatitis b virus (hbv) and treponema pallidum was conducted in various groups of the population of the state of mauritus (islands of mauritus and rodrigues). 618 sera were tested. the overall prevalence of anti-hav was 86.1% and yielded and age-dependent increase. serological evidence for acute or chronic hbv infection was found in 3.8%; 4.5% were positive for anti-hbc alone, and in 12.6% past hbv infec ... | 1991 | 1662829 |
| [serological markers for hepatitis a, b and c in madagascar. first investigation in a rural area]. | the first serological survey of hepatitis a, b and c virus infection was carried out in madagascar during 1993 in two rural villages (653 sera) of the middle-west. this study shows a high frequency of positivity of hepatitis a virus markers (94.9%). hepatitis a is acquired in early childhood. the data show the high frequency of positivity of hepatitis b (hbv) markers: in the two villages 72.5% and 89.8% have one marker, and seroprevalence of hbs antigene is 18.9% and 30.5%. hepatitis b also is a ... | 1994 | 7827511 |
| prevalence of antibody to hepatitis a virus in sri lanka. | antibody to hepatitis a virus was studied by immune adherence hemagglutination using 287 serum specimens collected in 1975 by random sampling from healthy individuals living in colomobo, sri lanka. the overall prevalence of antibody to the virus was 76.9% and the prevalence between males and females was approximately the same. the age-specific prevalence of the antibody indicated that hepatitis a in the area is mainly an infection during the early childhood. | 1979 | 227349 |
| seroepidemiology of infection with hepatitis a virus and hepatitis b virus in the seychelles. | a batch of 417 serum samples obtained from native-born subjects were tested for the presence of hepatitis b surface antigen (hbsag) and corresponding antibody (anti-hbs), by enzyme-linked immunosorbent assay (elisa); and antibodies to hepatitis b core antigen (anti-hbc), e-antigen (anti-hbe), and hepatitis a virus (anti-hav), by radioimmunoassay (ria). hbsag was found in only two of the 417 subjects studied. anti-hbs was detected in 112 samples (26.8%), anti-hbc in 114 (27.3%) and anti-hbe in 31 ... | 1982 | 6285695 |