The most common means by which HIV is spread is through intravenous drug use.

Question

Quizplus · Accepted Answer

The most common means of HIV transmission is through unprotected sexual intercourse with an infected person. Intravenous drug use is also a common mode of transmission, but it is not the most common. Other means of transmission include mother-to-child during pregnancy, childbirth, or breastfeeding, and occupational exposure (e.g. needle stick injuries).

The Most Common Means by Which HIV Is Spread Is