Charles P. Gerba

Dr. Charles Gerba is an expert on germs and bacteria. As a microbiologist at the University of Arizona in Tucson , Gerba says to many people’s surprise it’s the kitchen not the bathroom that has the most germs and bacteria. Gerba talks about why germs and bacteria thrive in the kitchen. They colonize your sink and sponges and rags, and grow by the billions overnight.. In addition, Dr Gerba has done extensive research on public bathrooms and has found more bacteria in women’s washrooms than men's. (Interview by Barbara Bogaev)