MONDAY, Aug. 9 (HealthDay News) -- Dry pet food may be a little-known source of Salmonella bacterial infection among humans, and young children seem to be especially at risk, a new study finds.
The authors of the study say they tracked a 2006-2008 Salmonella outbreak that sickened 79 American patients -- about half of them 2 years old or younger -- to household use of dry cat and dog food.
"It's a tough thing because pets are not symptomatic like we are and can shed this [bacterium] for up to 10 to 12 weeks" in their feces, said Dr. Peter Richel, chief of pediatrics at Northern Westchester Hospital in Mt. Kisco, N.Y., who is familiar with the findings. "It is a little disconcerting to hear that otherwise benign-appearing pet food can pose any risk at all."
The issue has made headlines in recent days with several varieties of Iams and Eukanuba dog and cat food recalled last week due to potential Salmonella contamination. The manufacturer, Procter & Gamble, says no cases of human Salmonella have yet been linked to these products.
The proportion of people who fell ill from contaminated pet food in the 21-state outbreak covered by the new study was small, but the fact that the food-borne illness affected young children so drastically is troubling, experts said.
Salmonella, a food-borne illness, can be serious in infants and the elderly.
Reporting in the September issue of Pediatrics, researchers led by Dr. Casey Barton Behravesh of the U.S. Centers for Disease Control and Prevention say that contact with pets and contact with the pet's environment -- their bed and where they eat and sleep, for example -- can result in human infections.
Feeding pets in the kitchen quadrupled the risk of illness, although "the reasons for that are a little unclear," said Dr. Timothy Pfanner, assistant professor of internal medicine at Texas A&M Health Sc
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