Nonsense. They should disclose their status, period. If they don't, that's reckless disregard for their fellow citizens.
Unless you approve of behavior like this:
The most famous contemporary superspreader is Gaetan Dugas, the French-Canadian flight attendant who had sex with thousands of men all over the world in the late 1970s and early `80s. Immortalized in Randy Shilts's 1987 book ''And the Band Played On,'' Dugas was no doubt responsible for a large percentage of early AIDS cases, though just how many remains in dispute. Like Mary Mallon, Dugas hardly cuts a sympathetic figure. According to Shilts, Dugas would sometimes turn on the lights in a bathhouse after an anonymous encounter, revealing the purple lesions on his body to his partner. ''Gay cancer,'' he would say. ''I'm going to die and so are you.''