Croatia: Still a Low-Level HIV Epidemic? – Seroprevalence Study

Central Europe is a region with a low prevalence of infection with human immunodeficiency virus (HIV). Until the end of 2007, 663 HIV cases were recorded in Croatia, almost exclusively among most at-risk populations.The aim of this research was to determine the HIV prevalence among most at-risk populations and the level of the HIV epidemic in Croatia. According to the World Health Organization classification there are three levels of HIV epidemics: generalized (prevalence in general population >1%), concentrated (prevalence in general population <1% and prevalence in at least one of the most at-risk populations >5%) and low-level epidemic (prevalence in general population <1% and prevalence in each most at-risk population