The bacillus is not penicillin or ampicillin sensitive. It responds to streptomycin, chloramphenicol and with some strains, tetracyclines. Lung abscess and bronchiectasis are common complications.

• 本菌对青霉素及氨苄青霉素不敏感,用链霉素、氯霉素有效。有些菌株用四环素有效。常合并肺脓肿及支气管扩张症。