Vogesella perlucida -induced bacteremia in an advanced-age patient: first case report
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CASE REPORT
Open Access
Vogesella perlucida-induced bacteremia in an advanced-age patient: first case report Zengxian Yu1† , Fang Zhu2† , Xinghe Tao1 , Lu Zhang1 , Suliu Wu3 , Chunfu Dong1 , Yeqing Dong1 , Ge chen3 , Xinyang Zhou3 , Yinfei Fang2 and Kechen Xu1*
Abstract Background: Vogesella species are common aquatic, Gram-negative rod-shaped bacteria, originally described in 1997. Vogesella perlucida was first isolated from spring water in 2008. Furthermore, bacterial pathogenicity of Vogesella perlucida has never been reported. Here, we report the first case of rare Vogesella perlucida-induced bacteremia in an advanced-age patient with many basic diseases and history of dexamethasone abuse. Case presentation: A 71-year-old female was admitted with inflamed upper and lower limbs, rubefaction, pain and fever (about 40 °C). She had been injured in a fall at a vegetable market and then touched river snails with her injury hands. A few days later, soft tissue infection of the patient developed and worsened. Non-pigmented colonies were isolated from blood cultures of the patient. Initially, Vogesella perlucida was wrongly identified as Sphingomonas paucimobilis by Vitek-2 system with GN card. Besides, we failed to obtain an acceptable identification by the MALDITOF analysis. Finally, the isolated strain was identified as Vogesella perlucida by 16S rRNA gene sequences. In addition, the patient recovered well after a continuous treatment of levofloxacin for 12 days. Conclusion: Traditional microbiological testing system may be inadequate in the diagnosis of rare pathogenic bacteria. Applications of molecular diagnostics techniques have great advantages in clinical microbiology laboratory. By using 16S rRNA gene sequence analysis, we report the the first case of rare Vogesella perlucida-induced bacteremia. Keywords: Vogesella perlucida, Bacteremia, 16S rRNA gene sequence analysis
Background Vogesella species belong to the family Neisseriaceae, order Neisseriales, class Betaproteobacteria, mainly characterized as Gram-negative, rod- shaped, aerobic or facultatively anaerobic and chemoheterotrophic bacteria [1–10]. So far as we know, there are no reported cases of human disease caused by Vogesella species. Although Vogesella urethralis has been isolated from human urine, its pathogenicity has not been reported [10]. Vogesella perlucida was first described in 2008 when it was discovered from water samples collected from a spring located * Correspondence: [email protected] † Zengxian Yu and Fang Zhu contributed equally to this work. 1 Clinical Laboratory Center, Wuyi First People’s Hospital, Wuyi, Jinhua 321200, Zhejiang, China Full list of author information is available at the end of the article
in Tainan County, Taiwan [2]. Vogesella perlucida is aerobic, non-pigmented, Gram-negative, non-spore-forming and rod-shaped [2]. Vogesella perlucida is positive for cytochrome oxidase, catalase, lipase (corn oil) and hydrolysis of Tweens 20, 40, 60, 80 and negative for DNase and for hydrolysis of starch, chitin and casein [2
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