Staphylococcus massiliensis isolated from human blood cultures, Germany, 2017-2020

Eur J Clin Microbiol Infect Dis. 2022 Apr;41(4):663-669. doi: 10.1007/s10096-022-04409-4. Epub 2022 Jan 26.

Abstract

Clinical and laboratory data on newly described staphylococcal species is rare, which hampers decision-making when such pathogens are detected in clinical specimens. Here, we describe Staphylococcus massiliensis detected in three patients at a university hospital in southwest Germany. We report the discrepancy of microbiological findings between matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, 16S-rRNA polymerase chain reaction, and whole-genome sequencing for all three isolates. Our findings highlight the diagnostic pitfalls pertinent to novel and non-model organisms in daily microbiological practice, in whom the correct identification is dependent on database accuracy.

Keywords: 16S rRNA; Coagulase-negative staphylococci; MALDI-TOF MS; Non-model organisms; Novel species; Staphylococcus massiliensis; Whole-genome sequencing.

MeSH terms

  • Blood Culture*
  • Humans
  • RNA, Ribosomal, 16S / genetics
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / methods
  • Staphylococcus*

Substances

  • RNA, Ribosomal, 16S

Supplementary concepts

  • Staphylococcus massiliensis