title: [Two cases of Corynebacterium pseudodiphtheriticum respiratory tract infection].
abstract: Corynebacterium pseudodiphtheriticum, one cause of respiratory tract infection, is rarely considered as a pathogen because it is among normal bacterial flora colonizing the oral cavity. We report two cases of C. pseudodiphtheriticum causing respiratory tract infection--an exacerbation of chronic obstructive pulmonary disease and pneumonia--, both in the presence of underlying respiratory disease. Both required antibiotics after first-line chemotherapy failed. Isolates were susceptible to beta-lactams. Gram-staining of respiratory tract specimens is important in diagnosing this infection and determining appropriate antimicrobial use.
authors.affiliation: Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences.
authors.forename: Yoshitomo
authors.initials: Y
authors.lastname: Morinaga
authors.forename: Katsunori
authors.initials: K
authors.lastname: Yanagihara
authors.forename: Koichi
authors.initials: K
authors.lastname: Yamada
authors.forename: Shigeki
authors.initials: S
authors.lastname: Nakamura
authors.forename: Koichi
authors.initials: K
authors.lastname: Izumikawa
authors.forename: Masafumi
authors.initials: M
authors.lastname: Seki
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kakeya
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Yamamoto
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Inoue
authors.forename: Shimeru
authors.initials: S
authors.lastname: Kamihira
authors.forename: Shigeru
authors.initials: S
authors.lastname: Kohno
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003354:Corynebacterium Infections; D005260:Female; D006801:Humans; D008297:Male; D011014:Pneumonia / Q000150:complications; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications; D012141:Respiratory Tract Infections