Herpes from Wrestling?

One does wonder somewhat at what these young men have been doing out on the wrestling mats:

An outbreak of a contagious rash called herpes gladiatorum among Minnesota high school wrestlers led the state to suspend matches and halt contact practices, authorities said on Wednesday.

The eight-day suspension affecting 7,500 wrestlers on 262 teams was the first time a U.S. state's entire high school program in a sport has been shut down, authorities said.

The Minnesota State High School League acted after 24 wrestlers from 10 schools contracted the rash, which was first noticed and spread at a tournament in December.

I know there's something vaguely homoerotic about pubescent boiys grappling with each other but do they really take it that far, that they share STDs, in Minnesota?