Most people touch shopping cart handles every time they go to the grocery store, but a new study may have you wiping them down first.
New research from the University of Arizona showed that 72 per cent of the 85 carts examined had a marker for fecal matter. They also found that half of 36 carts examined contained E. coli along with other bacteria.
"That's more than you find in a supermarket's restroom," said lead researcher Dr. Charles Gerba in an MSNBC story. "That's because they use disinfecting cleaners in the restrooms. Nobody routinely cleans and disinfects shopping carts."
Researchers swabbed cart handles in four states looking for bacterial contamination.
Gerba also said these results may explain other research that shows kids who ride in carts are at a higher risk of developing infections caused by bacteria.
Canadian entrepreneur Sergeo Hristovski came close to solving this problem. He invented a machine called the 'Pristine Cart' that sanitizes carts as you push them through. After investing $120,000 of his own money, he took his invention to CBC's Dragons' Den in October of 2008.
The Dragons initially seemed interested, but when they asked if any retailers were on board, Hristovski said they were "extra cautious". Due to a lack of interest from retailers and the price tag of $6,000 per machine, none of the Dragons made a deal.
Watch the clip of Hristovski on Dragons' Den
Retailers such as Whole Foods Market offers disposable wipes for people concerned about bacteria on cart handles, but told MSNBC they do not routinely wash down the carts.
Gerba also said research shows reusable shopping bags can turn into bacterial swamps if not washed regularly. He said, "It's like wearing the same underwear every day."
(Reuters photo)
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