living life a health life
posted by dc .
what are the three methods by which HIV and AIDS are usually transmitted?
Without seeking references, unprotected sexual intercourse and sharing needles are two methods that come to mind.
I searched Google under the key words "HIV transmission" to get these possible sources:
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.