Human Immunodeficiency Virus: This is the actual virus. The H can be substituted for whatever form the virus is in(e.g. F for feline and C for canine).
Acquired ImmunoDeficiency Syndrome: This is the condition that HIV causes.
With modern medications AIDS may never develop, but you will always have the HIV and it is very expensive.
The real concern here is that none of you even considered the danger of stingrays. That's what happened to Steve Irwin, he ignored the "Pool's Closed" signs.