Independent sources confirm the threat of bacteria, spores, viruses, fungi, mold, and mildew, including staph, MRSA (a form of staph) and e.coli. The following articles provide additional information for safeguarding against these threats.

Skin Infections in Athletes, Dr. Randy Martin, Infectious Disease Consultant,
     Director, Sutter Roseville Wound Clinic (PowerPoint Presentation)

Methicillin-resistant Staphylococcus Aureus and Athletes by Eugene Brent
     Kirkland, BS, and Brian B. Adams, MD, MPH (PDF)

MRSA Facts, USA Wrestling (PDF)

Reduce the Risk of Wrestling Skin Infections, Molnlycke Health Care (PDF)