Which bacteria is commonly associated with otitis media?

Otitis media, an infection of the middle ear, is most commonly associated with Streptococcus pneumoniae, often referred to as pneumococcus. This bacterium is a leading cause of various respiratory infections, including pneumonia, sinusitis, and otitis media in children. The connection arises because pneumococcus can colonize the nasopharynx and subsequently spread to the middle ear, especially in pediatric populations where the Eustachian tubes are more horizontal, making them more susceptible to infections.

While other bacteria like Staphylococcus can cause other infections, they are not the primary pathogens typically linked to otitis media. E. coli primarily is associated with gastrointestinal infections and is less commonly implicated in ear infections. Mycoplasma, while capable of causing respiratory issues, does not play a significant role in otitis media. Therefore, pneumococcus stands out as the predominant bacteria involved in this condition.