Kimberly Clarke, which makes a number of hygiene products, took 5,000 samples from various types of businesses housing more than 3,000 employees.
The study, which was conducted in consultation with a microbiology professor at the University of Arizona, found 75 percent of the sink faucet handles were filled with contamination, 48 percent of microwave door handles, 27 percent of keyboards, 26 percent of refrigerator doors, 23 percent of water fountain buttons and 21 percent of vending machine buttons.
The study also found that half of all computer mice and desk phones were found to have high leves of germs.
Experts say the best advice is to wash your hands often with soap or use hand sanitizer.
