When they did the tribute to Freddy, Phil Collins said that he missed Freddy and he was a basically good guy, but he tried to sleep with every man and woman he could get his hands on and he had to know that wasn’t healthy. The Gay Mafia attacked him for that saying no one had heard of AIDs when Mercury was sleeping around. Which was true, but even then it was know that gay men were at substantially higher risk of every known ATI as well as hepatitis and other serious diseases. Studies have show that gat men even have a higher disease risk than streetwalkers.
IIRC aids was orginaly called a wasting desease of unknow orgin. that was in the 70’s sometime.
Freddy himeself said he wanted to experence everything he could.