Misidentification of Phocaeicola (Bacteroides) dorei in two patients with bacteremia

Fernando Cobo; Virginia Pérez-Carrasco; Enrique Rodríguez-Guerrero; Antonio Sampedro; Javier Rodríguez-Granger; José A García-Salcedo; José María Navarro-Marí

doi:10.1016/j.anaerobe.2022.102544

Misidentification of Phocaeicola (Bacteroides) dorei in two patients with bacteremia

Anaerobe. 2022 Jun:75:102544. doi: 10.1016/j.anaerobe.2022.102544. Epub 2022 Mar 3.

Authors

Fernando Cobo¹, Virginia Pérez-Carrasco², Enrique Rodríguez-Guerrero³, Antonio Sampedro³, Javier Rodríguez-Granger³, José A García-Salcedo², José María Navarro-Marí³

Affiliations

¹ Department of Microbiology and Instituto de Investigación Biosanitaria ibs.GRANADA, University Hospital Virgen de las Nieves. Granada, Spain. Electronic address: fernando.cobo.sspa@juntadeandalucia.es.
² Department of Microbiology and Instituto de Investigación Biosanitaria ibs.GRANADA, University Hospital Virgen de las Nieves. Granada, Spain; GENYO, Pfizer-University of Granada- Junta de Andalucía for Genomics and Oncological Research, Spain.
³ Department of Microbiology and Instituto de Investigación Biosanitaria ibs.GRANADA, University Hospital Virgen de las Nieves. Granada, Spain.

PMID: 35247588
DOI: 10.1016/j.anaerobe.2022.102544

Abstract

Phocaeicola (Bacteroides) dorei is a Gram-negative anaerobic bacillus that is rarely isolated from human specimens. Its accurate identification can be hampered by its close taxonomic relationship with Bacteroides vulgatus. We report on two patients with bacteremia due to P. (B.) dorei, which was initially identified as B. vulgatus by MALDI-TOF MS.

Keywords: Anaerobes; Gene sequencing; MALDI-TOF MS; Phocaeicola(bacteroides) dorei; blood Cultures.

Publication types

Case Reports

MeSH terms

Bacteremia* / diagnosis
Bacteroides*
Humans
Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization