The germiest thing you touch in public is not the bathroom door handle as one might expect. Can you guess where you would find the most germ-infested environment? A hint: everybody visits this place regularly. What kind of precautions do you take against germs?
The South Korean Consumer Protection Board [KCPB] said in its press release that it sampled several items in 120 public place to test for the amount of bacteria on the surfaces of those items. The clear winner was the shopping cart handle.
Shopping cart handles at grocery stores had 1,100 colony-forming units [CFU] of bacteria per 1.55 square inch.
Computer mice at Internet cafes had 690 CFUs, hand straps on buses 380 CFUs, bathroom doorknob 340 CFUs, elevator buttons 130 CFUs and subway hand straps 86 CFUs.
Germs are everywhere. A recent study of Michigan elementary schools by the National Science Foundation [NSF] showed that drinking water fountain spigots in classrooms had 2.7 million CFUs per square inch.
Reusable plastic trays in cafeteria had 33,800 CFUs, cafeteria plate 15,800 CFUs, classroom keyboards 3,300 CFUs, toilet seat 3,200 CFUs and a student's hand 1,500 CFUs.