Occurrence of Carbapenemase-Producing in Bat Guano.

Microb Drug Resist

Laboratoire de Bactériologie, Virologie-Hygiène Hospitalière, CHU Reims, Hôpital Robert DEBRE, Avenue du Général Koenig, Reims, France.

Published: September 2019

The aim of this study was to screen for the presence of carbapenemase-producing Enterobacteriaceae (CPE) isolates from bat guano in Bejaia, Algeria. Guano samples ( = 110) were collected in Aokas's cave, Bejaia, Algeria, between March and May 2016. Samples were plated on MacConkey agar supplemented with ertapenem (0.5 mg/L) and vancomycin (32 mg/L). The isolates were identified and antimicrobial susceptibility was determined using disk diffusion method. Carbapenemase, extended spectrum β-lactamases, plasmid-mediated AmpC, and plasmid-mediated quinolone resistance genes were studied using PCR and sequencing. Clonal relatedness was studied using multilocus sequence typing (MLST). Two CPE isolates were identified as . PCR and sequencing identified the OXA-48 in one strain (CS34) and KPC-3 in the other strain (CS63). CS63 was found to carry and genes. The MLST showed that CS63 was assigned to ST512, whereas CS34 belonged to ST1878. This is the first description of CPE from bats' guano.

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http://dx.doi.org/10.1089/mdr.2018.0471DOI Listing

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