Lyme disease is spread by deer ticks like this one. A study finds that some people can be reinfected many times with the bacteria that cause the disease.
Lauree Feldman/Getty Creative Images
November 14, 2012 Some doctors thought Lyme disease was a chronic condition that relapsed. Now, there's evidence that recurring cases of Lyme disease may actually be caused by multiple, discrete tick bites and infections.
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Bacteroides species are some of the most common bacteria in the human gut.
Enviornmental Health Perspectives
July 15, 2012 Aging people who cook with vegetables, fruits, and lean proteins at home have more kinds of gut bacteria, than those eating a bland nursing home diet, says a new study. Researchers say that in addition to digestion, these bacteria might also increase immune and cognitive functions during aging.
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February 10, 2011 Do antibiotics teach us about evolution? This link to a PBS program makes the connection clear.
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