A recent study by microbiologists has revealed that a full 48% of soda fountains at fast food restaurants contain coliform bacteria–a bacteria that commonly grows in feces, while 11% contained E. Coli, too.
Other opportunistic pathogenic microorganisms isolated from the beverages included species of Klebsiella, Staphylococcus, Stenotrophomonas, Candida, and Serratia. Most of the identified bacteria showed resistance to one or more of the 11 antibiotics tested.
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Chapter: Food,Health :: 20 March 2010