<prompt> Acute otitis media is most commonly caused by:Streptococcus pneumoniaeHemophilus influenzaeStaphylococcus aureusKlebsiella pneumoniae  <response>: Ans. a Streptococcus pneumoniaRef: Dhingras ENT 6th ed.62 Acute otitis media is most commonly caused by Streptococcus Pneumonia. However it can also be caused by H.Influenzae and Moraxella catarrhalis. Causative Agents:INFECTIONMC ORGANISMPerichondritisPseudomonasMalignant otitis externaPseudomonasLocalized otitis externaStaphylococcus AureusAcute suppurative otitis mediaStrep PneumoniaeChronic otitis MediaPseudomonas 