When I read this report in the news, it sadden me that quite a number of wgs from Asia were going also. Most of these girls may not have stds now, but they may have them after doing the rounds during the World Cup. Considering Africa has a high rate of stds/hiv, there is a very high chance these girls will get infected from their customers.
You think these girls can refuse customers? Not very likely, especially if the girls are brought in by S. African managers. I hope China makes it mandatory for every China national returning from Africa to submit to a blood test.