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Sunday, September 22, 2013
News in Brief: Mice lose cat fear for good after infection
Mice may permanently shed a fear of felines when infected with a parasite. The effects linger long after the parasites disappear, a study shows.
The protozoan parasite Toxoplasma gondii can infect most mammals, including humans (SN: 1/26/13, p. 24). But the parasite can reproduce only in the feline gut, so cats need to eat animals infected with T. gondii to keep the parasite generations going.
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