According to the CDC: "Pneumococcal disease is an infection caused by a type of bacteria called Streptococcus pneumoniae (pneumococcus). There are different types of pneumococcal disease, such as pneumococcal pneumonia, bacteremia, meningitis, and otitis media."
According to Medicinenet.com: "What microorganisms cause otitis media?
Bacteria and viruses can cause otitis media. Bacteria such as Streptococcus pneumoniae (pneumococcus), nontypable Hemophilus influenzae and Moraxella account for about 85% of cases of acute otitis media. Viruses account for the remaining 15%. Affected infants under six weeks of age tend to have infections from a variety of different bacteria in the middle ear."
at 1:20 PM on May. 31, 2010