Just to clarify what Gaucho stated:
The mats that the white belts train on receives more cleansing treatment than the mats the blue through black belts train on. According to him... It would be insane for him to state that if you are a white belt you are immune to bacteria/infection but once you become a blue belt, your immune system decreases.
fyi... I'm just clarifying Guacho's statement. The above is not my opinion since I have not performed any case studies, taken any bacterial samples, etc...
In my opinion, since this thread was started alot of healthy dialogue about healthy, cleanliness, prevention, etc... has been taking place in the academy. Nearly everyday since this thread was started, I've taken part or overheard people speaking on this subject. Therefore, I give this thread two thumbs up (actually one thumb up since I sprained my thumb on Wednesday). Take care guys