a population based study of herpes simplex virus 2 seroprevalence in rural costa rica. | to determine seroprevalence and determinants of herpes simplex virus 2 (hsv-2) seropositivity, in a random sample of a population based cohort of 10 049 women of guanacaste, costa rica, using a highly sensitive and specific serological assay. | 2003 | 14663121 |