What Kind Of Germs Typically Live On A Toothbrush?

What Kind Of Germs Typically Live On A Toothbrush? Your toothbrush is loaded with germs, say researchers at England’s University of Manchester. They’ve found that one uncovered toothbrush can harbor more than 100 million bacteria, including E. coli bacteria , which can cause diarrhea, and staphylococci (“Staph”) bacteria that cause skin infections. But don’t panic.