HIV is easier to catch through broken skin than through intact skin, but you can still avoid HIV by not having genital-genital contact with someone who has HIV.
It is easier to pass chlamydia.
HIV can spread either way. But the leading sexual activity that spreads HIV is vaginal intercourse.
Gay guys (and straights) get HIV from sharing bodily fluids with someone who has HIV. Sharing bodily fluids can only be done through unprotected sex, or by sharing needles. It is rarely possible to get it from oral sex, so you can't get it through pants. It is not easy to contract HIV. Read the related questions below.
It is better to be HIV negative than HIV positive. An HIV positive person is infected with HIV.
HIV is a virus that causes AIDS. It can be spread by sharing needles for drugs. The needles don't create HIV, but make it easier to pass from person to person.
HIV is the most infectious between the following blood borne pathogens; HIV, hepatitis b, hepatitis c.
STD's are transferred from one partner to another through bodily fluids released during sex.
It's easier to get HIV while you have chlamydia because of changes in the reproductive tract due to infection. Also, if you haven't changed the risk factors that made getting chlamydia possible, you are also at risk for HIV. I don't know of any research or mechanism by which past chlamydia can increase the risk of future HIV.
Yes, HIV is an RNA virus. However infectious HIV is more than just RNA.
Yes. HIV is not transmitted by marriage. HIV is transmitted by unprotected sex with an infected individual. The majority of gays and lesbians are not infected with HIV. And, a large pecentage of HIV-positive individuals are not gay. People will continue to pursue their own sex lives regardless of whether same-sex marriage is legalized. In fact, marriage actually reduces the number of sexual partners that one has and therefore is helpful in reducing the rate of HIV infection.
Technically, they are the same things. HIV is what you have when you have more than 200 t cells still in your body. Once you have less than 200 t cells, you are classified as having AIDS. So technically, yes, AIDS is worse than HIV, as HIV is only the beginning stage.