In this Thursday, April 16, 2015 photo, Beverley Petrunich, co-owner of DoGone Fun, a day care and boarding facility, visits with some of her clients in Chicago. Experts say doggie day care contributed to an epidemic of dog flu in Chicago that is spreading in the Midwest. Petrunich says when the virus emerged in Chicago, her canine clients were hit hard. She consulted with vets, then closed for five days in late March to control the outbreak. (AP Photo/M. Spencer Green)
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