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Most ear infections form in the middle ear. The
eustachian tube carries fluid from the middle ear to the throat. Sometimes
during a cold, the eustachian tube becomes swollen and fluid is trapped in the
middle ear. Bacteria or viruses can grow in this fluid and form an ear
September 10, 2012
Susan C. Kim, MD - Pediatrics & Charles M. Myer, III, MD - Otolaryngology
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