[MrB]

Just curious, would a “certain minority group” be more susceptible because of genetics or behaviors?

If the latter, then you wouldn’t even have to worry about being in “a certain minority group” if you didn’t participate in the risky behaviors that contract AIDS.

[Mouton]

He did not explain the distinction. My guess it was from behavior regarding the susceptibility by different groups to the disease. This was not a college biology course on the subject, it was a five minute discussion.