PLEASE I would love is Kmart employees would answer this... show more i'm turning 15 in two months exactly today, and I want a job souly for the money and I want more responsibility. AND i can't find out how old Kmart hires.
An ear infection can be caused by bacteria or a virus. It happens when fluid builds up in the area behind your baby's eardrum and then becomes infected. Normally any fluid that enters this area leaves pretty quickly through the eustachian tube, which connects the middle ear to the back of the nose and throat.
There are two major germ classes that cause infections: viruses and bacteria. Bacteria are responsible for about 70 percent of ear infections, viruses cause about 8 to 25 percent of ear infections, and bacteria and viruses working in concert are found in the remaining cases.