Should we assume that some people have more than one disease? Because I doubt that 110 million different people have STDs.
You’d have to, otherwise half of adults have them.... hm, like 53% or so.....
Yes, many people have at least 3 at the same time (HPV, Herpes, Gonorrhea). And don’t forget people with HIV, which is under-reported these days.
That’s what I’m assuming. They’re gathering and adding reported cases. Not correlating whether you had individuals with a different STD in every orifice.