Ear infection: Ear infections can be caused by any number of bacteria. However, the three most common causes of inner ear infections (otitis media) are: Streptococcus Pneumoniae; hemophilus influenzae (non-typeable); and moraxella catarrhalis. Infections of the outer ear and ear canal (otitis externa) can be from other bacteria. See your doctor if you believe you have an ear infection.
Answered 12/1/2014
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