Most of these aren't at all rare. The rest I don't recognize. HPV? Everybody has it. It's called warts. I'm not gay, and I've had a wart on my foot. Herpes simplex is your garden variety herpes, and it's estimated that one in four Americans has it unawares. Chlamydia, syphilis, gonnorhea, and hepatitis are common STDs as well, and not at all exclusive to homosexuals.
Anal cancer is caused by HPV and AIDS, and is not sexually transmitted- so I don't think that really counts. Cryptosporidiosis is caused by AIDS. The rest I don't know but if they're rare then that likely means they are salient to a compromised immune system (AIDS) and are not at all exclusive to homosexuals.--CamilleT 14:56, 24 June 2011 (EDT)