They can only if they are infected with the virus.
To be exposed to does not always mean that you will be infected. If contracting the disease you will still not test positive until some time afterwards.
Being infected with HIV increases a persons risk of developing a variety of health problems. Health concerns associated with smoking are amplified when a patient is HIV+. Infected persons are more likely to suffer infections and develop cancers if they continue smoking through HIV infection.
Yes if you have a cut or broken skin and the HIV infected persons blood enters the cut or broken skin.
As far as having sex goes: Anal sex is the most dangerous type of sex for the spread of HIV/AIDS. This is because there is usually more blood present(which is one of the fluids that transmit HIV/AIDS). Vaginal would come second in line and oral third.
No, you will not be infected in that manner.
HIV-positive means you are infected with the human immunodeficiency virus. HIV-negative means that you are not infected with the HIV.
In order to contract HIV from blood, it must be infected with the virus. Otherwise, you will not contract HIV.
You can not be infected with HIV though casual contact.
No there are not.
Chances are low to be infected with HIV in this manner.
The chances of getting infected with HIV by ingestion of HIV-infected blood is very small.
A HIV negative person can not be a carrier of HIV.