This new study evaluated the influence of transmission bottlenecks on HIV-1 infection virulence by comparing outcomes between penile-vaginal intercourse and anal intercourse, and found more severe ...

Adolescent girls and young women are at high risk of sexually transmitted infections, including HIV. The Joint United Nations Programme on HIV/AIDS estimates that in some countries, girls and women ...

Variations in virus strains in different populations are associated with varying disease severity and treatment outcomes. A study publishing March 10 th in PLOS Pathogens by Ananthu James and Narendra ...

Researchers have found that HIV-1, the dominant type of the virus that causes AIDS in humans, became more virulent when transmitted during penile-vaginal rather than anal intercourse 1. Penile-vaginal ...