Dozens of salmonella infections in toddlers have been traced to dry pet food, the first time human infections have been linked to dry dog and cat food, health officials say. The infections occurred from January 2006 through October 2008 in 21 states. More than 23,000 tons of pet food were recalled, affecting 105 brands, and the manufacturing plant, in western Pennsylvania, was shut in 2008.
The link between salmonella and dry pet food was described by health officials from several states and the Centers for Disease Control and Prevention in a paper published Monday on the Web site of the journal Pediatrics. Officials referred to the factory only as “Plant X.” Altogether, 79 people were infected, including 32 children age 2 or younger.
Scientists traced the uncommon salmonella strain, called salmonella schwarzengrund, to bagged dry dog food. Many of the infections occurred in homes where pets were fed in the kitchen, and the scientists recommended that children younger than 5 not be allowed to touch or eat pet food or pet treats and be kept away from pet feeding areas.
“The most important thing a person can do is to wash hands right after handling pet food or treats or cleaning up after their pets,” said the paper’s lead author, Casey Barton Behravesh of the C.D.C.
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