Needle sharing for drug use involves the most direct risk of infection with HIV. People exchanging sex for drugs are also at high risk.
STDs do not reduce the risk of getting HIV. In fact, STDs increase the risk of getting HIV. Any STD elicits an immune response. Its almost like ringing the dinner bell for HIV. Most infections pull CD4 immune cells (cells that HIV infects) to the site of infection (usually). This increases the risk of infection.
by injection of heroin
Yes, there are reports that say that HIV positive mothers who are breastfeeding will reduce the risk of the baby contracting HIV.
The use of narcotics can increase your risk of HIV if their abuse affects your judgment about sexual safety. The safe, prescribed use of narcotics doesn't increase the risk of HIV.
Sexually active people.
only if patient has HIV to begin with.
HIV testing is considered conclusive 90 days after the most recent risk for infection. If the last time you were at risk for infection was six months ago, and you just had an HIV test performed, it would be considered conclusive.
It's a very high risk.
HIV risk is not linked to blood groups, it is linked to life style.
High risk behaviors that spread HIV are unprotected sex and sharing needles.
Routine infection control techniques prevent the transmission of HIV in the dental clinic. If your dentist is using standard procedures, there is no risk of HIV transmission.