Бактерії в офісних чашках

A 1997 University of Arizona team study found bacteria on office cups and in coffee-preparation areas. About 41% of the reusable cups tested had coliform bacteria; wiping with a moist sponge or cloth could transfer *E. coli* to cups. The popular figures “90% of clean cups” and “20% with fecal bacteria” are not an accurate summary of that study: media retellings often combine results from before and after wiping. Detecting bacteria alone does not mean a cup will cause illness.