Are there any good germs?

Bacteria have gotten a bad reputation, and for good reason. Bacteria are behind a number of serious diseases — including pneumonia (Streptococcus pneumoniae), meningitis (Haemophilus influenzae), strep throat (Group A Streptococcus), food poisoning (Escherichia coli and Salmonella), and a variety of other infections. read more

Without these good bacteria, your body couldn't efficiently process the food you eat. Scientists also use bacteria in other important ways. For example, some medicines and many vaccines are made from good bacteria. read more