True about HIV -
In USA it was transmitted predominantly among male homisexuals.The danger if infection is more for the passive paner because mucosal tears are bery frequent during anal intercourse and virus ladem lymphocytes in the semen can directly ente through these. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:582
Not transmitted through semen
More chances of transmission during LSCS than normal labour
More infectious than hepatitis B
Male to female transmitted >female to male
Virology