Publisher Summary This chapter focuses on the effects of human immunodeficiency viruses
in the developing world. Acquired immunodeficiency syndrome (AIDS) has become a major …

Significant differences have been observed in the rates of transmission and disease
development in human immunodeficiency virus (HIV) types 1 and 2. Because many HIV-2 …

Over a 20-year period we have observed the dynamics of HIV-1 subtypes and HIV-2
infection in a prospective cohort of registered female sex workers (FSW) in Dakar, Senegal …

Human immunodeficiency virus type 2 (HIV-2), the second human retrovirus known to cause
AIDS, is endemic to West Africa but is infrequently found outside this region. We present a …

A prospective study of high-risk commercial sex workers in Senegal has shown that HIV-2
infection may reduce the risk of subsequent HIV-1 infection; these findings have been …

Objective: We conducted this study to genetically characterize dual infection in individuals
demonstrating a dual serological profile. Methods: All subjects were first evaluated by …

Background Few studies have addressed primary human immunodeficiency virus (HIV) type
1 infection in sub-Saharan Africa, where the epidemic is of a predominantly heterosexual …

Human immunodeficiency virus type 2 (HIV-2) is the second human immunodeficiency virus
in the class of human retro-viruses; it constitutes the closest known virus related to the …

Serologic distinction between human immunodeficiency virus type 1 (HIV-1) and HIV-2
infection is made difficult because of the cross-reactivity and high cost of existing …

In West Africa, India, and certain regions of Europe, both human immunodeficiency viruses
types 1 and 2 (HIV-1 and HIV-2) are known to cocirculate. To investigate the HIV-1 subtypes …