A Cluster of HIV Infection among Heterosexual People without Apparent Risk Factors

Abstract

BELGIUM is a point of transition between Africa and Europe with respect to patterns of transmission of the human immunodeficiency virus (HIV).1 About 66 percent of all patients with the acquired immunodeficiency syndrome (AIDS) in Belgium have apparently been infected heterosexually, and heterosexual intercourse was identified as the mode of transmission of HIV in 46 percent of patients seen at the AIDS unit in Brussels.2 In contrast with the United States, where the highest risk of transmission of HIV among heterosexuals is found in intravenous drug users, most of the heterosexual patients in Belgium are not intravenous drug users and . . .