Otitis Externa is Caused Most Often by _____

Question

Otitis externa is caused most often by _____.
A)Streptococcus pyogenes
B)Staphylococcus aureus
C)Haemophilus influenzae
D)two of these choices

Accepted Answer

Otitis externa is most commonly caused by Staphylococcus aureus, although other bacteria such as Pseudomonas aeruginosa can also cause the infection. Streptococcus pyogenes and Haemophilus influenzae are not typically associated with otitis externa.