A recent study suggests sharing a home with a pet may be an early form of cross-training for the body's defense systems.
URL: http://www.topix.com/pets/2012/09/study-dogs-cats-keep-kids-healthier?fromrss=1
Enclosure: http://www.topix.com/bigpic/mini-579a7c1e1c886308729c973b002d90ae
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