Chennai, Aug. 22 -- Highlights:

* Prolonged exposure to semen promotes resistance to HIV infections in the host

* Semen exposure produces changes in immune cells in the blood circulation and vaginal //tissue

* This could potentially prevent the transmission of HIV from men to women

Repeated semen exposure promotes resistance of the host to human immunodeficiency virus (HIV) infection, reports a new study, jointly conducted by the Wistar Institute and the University of Puerto Rico.

The research team found that sustained exposure to semen, changes the characteristics of the immune cells present in the blood circulation and in vaginal tissue, as a result of which they become less susceptible to infection by HIV. This finding goes agains...