The dirt: Exposed to food and infants, as well as birds in the parking lot, shopping carts are dirtier than many other public surfaces. Coliform bacteria were detected in 72 percent of 85 shopping carts sampled in a study. Children have been found to be at higher risk of salmonella infection when riding in a cart, Gerba said.To clean: Carry sanitizing wipes with you and wipe down the handle and the basket where kids tend to sit. Avoid rubbing your face, and wash your hands afterward.
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