Genomic Analysis of two NDM-1 Providencia stuartii Strains Recovered from a Single Patient

Curr Microbiol. 2020 Dec;77(12):4029-4036. doi: 10.1007/s00284-020-02242-6. Epub 2020 Oct 13.

Abstract

In the last years, an increasing number of untreatable infections caused by drug-resistant microbes have impacted the health care system. Worldwide, infections caused by carbapenem-resistant (CR) Gram-negative bacilli have dramatically increased. Among the CR-Gram-negative bacilli, those producing carbapenemases, such as NDM-1, are the main concern. Different Enterobacterales harboring NDM-1 have been reported lately. Providencia stuartii, a member of the Morganellaceae family, is ubiquitous in the environment, but is also known to cause nosocomial infections. Here we describe the genomic analysis of two NDM-1- producing P. stuartii strains recovered from the same patient as well as other carbapenem resistant strains recovered from the same hospital. As a result of the genomic analysis thirteen resistance genes, including three to β-lactams (blaOXA-1, blaTEM-1, blaNDM-1), four to aminoglycosides (aphA6, aac(3)-IId, aac(2')-Ia, aac(6')-Ib-cr5), one to sulfonamides (sul1), two to chloramphenicol (catB3, catA3), one to rifampicin, one to bleomycin (ble), and one to tetracycline (tet(B)) were found. Moreover, a variety of mobile genetic elements, such as insertion sequences, plasmids and phage- related sequences, were found within P. stuartii genomes. The spread of carbapenem-resistant isolates remains a significant clinical and public health concern. Therefore, we considered that the detection of CR isolates is an essential step in addressing this problem.

MeSH terms

  • Anti-Bacterial Agents / pharmacology
  • Genomics
  • Humans
  • Microbial Sensitivity Tests
  • Plasmids
  • Providencia* / genetics
  • beta-Lactamases* / genetics

Substances

  • Anti-Bacterial Agents
  • beta-Lactamases
  • beta-lactamase NDM-1

Supplementary concepts

  • Providencia stuartii