[Mockingbird For Short]

And this:

More than 400,000 Americans have died of AIDS. Most of the infections and deaths could have been prevented by the employment of standard public health practices, which were in place for more than half a century leading up to the inception of the AIDS epidemic. These practices include testing, contact tracing, reporting, and closing of infections sites. These standard practices were all abandoned under intense and unrelenting political pressure from homosexual activists and the AIDS lobby.

3) What is meant by "testing, contact tracing, reporting, and closing of infections sites" as practices that were employed for many years to prevent AIDS?

[Mockingbird For Short]

The bacteria contacted during anal intercourse include Shigella, Entamoeba, Giardia (causes chronic diarrhea), and the bacteria that cause hepatitis A (severe liver damage which can kill), and hepatitis B. Of course, the mostly deadly of all, HIV, is more easily transmitted through anal sex.

4) Are these germs in everybody's rectum (I know, it's a gross question) but don't do any harm if there's no break in the skin, or do these germs only occur---- ug, what I mean is: How do these bacteria get into the rectum?