"Back in the day", John Holmes tested positive, he was one of the first ���� stars to do so. He kept acting for a while regardless here stateside, once he was found out...he went over seas and acted for a while there too. Supposedly nobody reported being infected by him. Far as current stars...no big names anyway that I'm aware of.
I wouldnt go so far as to say the 'industry' was hit. LOL, more like one or two people were reported infected. Again, no big names. Most companies are very stringent with their STD testing, and youre more likely to catch HPV (warts), or Herpes than you are HIV. Both still annoying STDs that youre stuck with for life but, nothing near as severe.