Further Reading

M. Rosen. “A gut infection can keep mice lean.Science News. Sept. 5, 2013.

S. Ornes. “The power of microbes.” Science News for Kids. July 11, 2013.

S. Ornes. “Gut instinct.” Science News for Kids. June 22, 2011.

S. Ornes. “Obesity and the common cold.” Science News for Kids. Oct. 5, 2010.

J. Raloff. “Viruses may leave a weighty legacy.” Science News. April 12, 1997.