Which of the following is a common bacteria that causes otitis media?

Moraxella is a common bacterium associated with otitis media, particularly in children. This condition, characterized by the infection or inflammation of the middle ear, is often caused by various pathogens, and Moraxella catarrhalis is one of the most prevalent among them. This bacterium is considered a significant contributor to respiratory infections and is known for its ability to colonize the nasopharynx. Its prevalence in otitis media cases is particularly notable in children, where it can lead to both acute and chronic forms of the infection.

In contrast, while Staphylococcus aureus, Clostridium spp., and Escherichia coli can cause various infections in humans, they are less frequently implicated in otitis media. Staphylococcus aureus is typically associated with skin and soft tissue infections, Clostridium is often linked to more severe conditions like gangrene, and Escherichia coli is more commonly a cause of gastrointestinal infections. Thus, Moraxella stands out as a pertinent and common cause of otitis media.