Bacteriology at Home by Dr. Ursula Schwuttke, IHMC
March 21, 2020
The March topic was changed in response to the social distancing requirements of COVID-19. Families received instructions for an experiment at home, in which they monitored the growth of bacteria on bread. The bacteria was from their unwashed hands, cell phones, hands cleaned with hand sanitizer, and hands washed with warm water and soap. Participants were surprised to discover that unwashed hands spread bacteria than cell phones, and that washing hands with warm water and soap transferred much less bacteria than using hand-sanitizer. A few families sent photos.