The first cases of human bacteremia caused by Acinetobacter seifertii in Japan

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• 作者：Kozue Kishii^a ; ^b ; ^{kishiikze@stf.teu.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Ken Kikuchi^b ; Junko Tomida^c ; Yoshiaki Kawamura^c ; Atsushi Yoshida^d ; Katsuko Okuzumi^d ; Kyoji Moriya^e
• 关键词：Acinetobacter seifertii ; Bacteremia ; Catheter-related bloodstream infection ; rpoB gene sequence analysis
• 刊名：Journal of Infection and Chemotherapy
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：22
• 期：5
• 页码：342-345
• 全文大小：393 K

文摘

Acinetobacter seifertii, a novel species of Acinetobacter, was first reported in 2015. A. seifertii strains were isolated from human clinical specimens (blood, respiratory tract, and ulcer) and hospital environments. Here, we report the first cases of bacteremia caused by A. seifertii in patients with catheter-related bloodstream infection in Japan. The patients favorably recovered, without any complications, after removal of the peripheral intravenous catheters and administration of antibiotics. The pathogens were initially identified as Acinetobacter baumannii, using phenotypic methods and the MicroScan Walkaway System; however, rpoB gene sequence analysis indicated 99.54% similarity to A. seifertii. Moreover, antimicrobial susceptibility testing revealed that one of the strains was not susceptible to gentamicin and ceftazidime. Our report shows that Acinetobacter species other than A. baumannii can also cause nosocomial infections and that accurate methods for the identification of causative agents should be developed.