Is it true that homosexuals are more likely to transmit diseases like hepatitis, hsv and hiv-2?

It's what you do: It's not a question of whether they're more likely to transmit, but whether they're more likely to be infected. Hiv-2 is seen in west africans, not gay men. Hepatitis b is more common in gay men, hepatitis c in drug users. Hsv is widespread throughout the population. Anal sex transmits HIV easily whether done by gay people or straight people. Risk depends not on who you are, but on what you do.

No: No, homosexuals are not necessarily more likely to transfer these infections than heterosexuals. Infections like hepatitis, herpes, and HIV are commonly transmitted by unprotected sex, whether homosexual or heterosexual.