Characterization of ESBL-producing enterobacteria from fruit bats in an unprotected area of Makokou, Gabon. - Archive ouverte HAL
Journal Articles Microorganisms Year : 2020

Characterization of ESBL-producing enterobacteria from fruit bats in an unprotected area of Makokou, Gabon.

Abstract

In Gabon, terrestrial mammals of protected areas have been identified as a possible source of antibiotic-resistant bacteria. Some studies on antibiotic resistance in bats have already been carried out. The main goal of our study was to detect extended-spectrum beta-lactamases (ESBLs) that are produced by enterobacteria from bats in the Makokou region in Gabon. Sixty-eight fecal samples were obtained from 68 bats caught in the forests located 1 km from the little town of Makokou. After culture and isolation, 66 Gram-negative bacterial colonies were obtained. The double-disk diffusion test confirmed the presence of ESBLs in six (20.69%) Escherichia coli isolates, four (13.79%) Klebsiella pneumoniae isolates, and one (3.45%) Enterobacter cloacae isolate. The analysis based on the nucleotide sequences of the ESBL resistance genes showed that all cefotaximase-Munichs (CTX-Ms) were CTX-M-15 and that all sulfhydryl variables (SHVs) were SHV-11: 41.67% CTX-M-15-producing E. coli, 16.67% CTX-M-15+SHV-11-producing E. coli, 8.33% CTX-M-15-producing K. pneumoniae, 25% CTX-M-15+SHV-11-producing K. pneumoniae, and 8.33% CTX-M-15-produced E. cloacae. This study shows for the first time the presence of multiresistant ESBL-producing enterobacteria in fruit bats in Makokou.

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Bacteriology
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hal-02464255 , version 1 (21-09-2020)

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Pierre Philippe Mbehang Nguema, Richard Onanga, Guy Roger Ndong Atome, Jean Constant Obague Mbeang, Arsène Mabika Mabika, et al.. Characterization of ESBL-producing enterobacteria from fruit bats in an unprotected area of Makokou, Gabon.. Microorganisms, 2020, 8 (1), pp.138. ⟨10.3390/microorganisms8010138⟩. ⟨hal-02464255⟩
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