| seroprevalence of four sexually transmitted diseases in a semi-urban population of gabon. | using the cluster-sampling method, the authors estimated the seroprevalence of 4 sexually transmitted diseases (stds) among the sexually active general population in a city of 30,000 inhabitants in the east of gabon. the seroprevalences were 2% for hiv-1, 13.8% for hepatitis b, 8.6% for treponema pallidum and 59.6% for chlamydia trachomatis. the seroprevalences of hepatitis b and chlamydia were stable over time and similar to those registered in other countries of central africa. on the other ha ... | 1998 | 9518012 |