I'm actually very happy that Stella also ended up testing negative for HIV because of the dubious circumstance of her potential exposure to the victims blood. As documented, there are over 900,000 sharps injuries in the United States each year and in the last 25 years, only 52 documented cases of HIV-infection through this were confirmed via sharps injuries such as accidents at crime scene investigations. That's 52 out of 23,400,000 sharps injuries since 1981 and from what I'm aware of, I may be wrong on this, but the last HIV infection this way was probably in the late 1980s or early 1990s.
With that said, I'm glad she tested negative for HIV considering the infintesmal chances of actually acquiring this horrific disease through this way.
With that said though, other infectious diseases should've been of much greater concern such as Hepatitis (A,B, and C), germs, or even Ecoli 0157:H7. For everything that AIDS has caused, I've heard much more horrifying stories about what this mutated form of ecoli has done to it's victims. Not to be too 'ghoulish' like Dobson said on "Past Imperfect" but I've heard stories of this disease destroying peoples organs, and causing long-term neurological problems and this is by a bacteria that can survive in many environments that could kill HIV within seconds including alchohol, bleech, and even chlorine.
Here's a link to what I'm talking about. I don't feel like elaborating it here.
http://en.wikipedia.org/wiki/Escherichia_coli_O157:H7#Transmission
Anyway, I'm very much aware that more and more people are living longer and staying healthier with this terrible HIV infection but the way this story was handled was shabby and in all honesty not even necessary. Thank god she tested negative. That was a can of worms to be avoided there.