HIV is not in fingernails.
Yes, non-infected people (gay or straight) can contract the HIV virus if they are exposed to the HIV virus from another person.
If injected with the virus HIV, they would be infected.
It Could
No you will not as saliva does not have enough virus in it to transmit.
No. In order to have the disease known as AIDS (which is not a virus itself, but a syndrome), a person needs to be infected by the HIV virus. It is the HIV virus that causes AIDS.
This means that the person was infected with the HIV virus at birth.
Saliva has no Aids or HIV in an infected person but everything else can spread the virus.
No, you will not be infected in that manner.
If the person you are having oral sex with is HIV positive, then it is possible to be infected with the virus.
Short answer: possibly.First of all, to contract AIDS, the person must be infected with the HIV virus. If the person is infected with the HIV virus (which causes aids) and you get their blood on an open wound, or a mucus membrane such as the mouth, it is possible. If you get some infected blood on normal skin that is healthy, the chances of you contracting the HIV virus are slim to impossible (?).
Spinal fluid from a HIV infected person does contain HIV, and in enough quantity to cause the virus to transfer.
You get the HIV virus from semen. HIV is the virus which causes AIDS. It passes from one person to another through having sex, or by sharing drug needles. When a new person gets HIV the virus gradually multiplies in the body (unless it is stopped with medication). AIDS is more like a weakness of the immune system. If the HIV virus load is very high in a person, then it is easy for them to catch pneumonia and other diseases. For a fit person these diseases are easily cured, but for a person with this weak immune system they are very dangerous and can be fatal.