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Research Article | 12 Jan 2024

Detection and molecular characterization of multiresistant Enterobacteriaceae carried by houseflies in the city of Bobo-Dioulasso, Burkina Faso

Sanou D. M. Soufiane1, Yerbanga R. Serge2,3, Bangre Tinlé2, N’Do Sévérin3, Kaboré N. Firmin1, Traoré Isidore1, Zoungrana Jacques4, Yaméogo Inès2, Nikiéma Félicité2, Fofana Aminata3, Batiéné Naomi2, Ouédraogo Jean-Bosco2, Sangaré Ibrahim4, and Sanou Mahamoudou5 Show more
INTERNATIONAL JOURNAL OF ONE HEALTH | Article No. 2 | pg no. 12-19 | Vol. 10, Issue 1 | DOI: 10.14202/IJOH.2024.12-19
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ABSTRACT

                      
Background and Aim: Houseflies (Musca domestica) are synanthropic insects that are vectors of a wide range of multidrug-resistant pathogens responsible for infectious diseases. The aim of this study was to detect and characterize multidrug-resistant Enterobacteriaceae carried by houseflies in Bobo-Dioulasso.
Materials and Methods: A total of 500 houseflies were captured in hospital and non-hospital environments in the city of Bobo-Dioulasso. For bacteriological analysis, they were divided into 125 batches of five flies each. Multidrug-resistant bacteria isolated on MacConkey agar supplemented with 4 μg/mL cefotaxime were identified on the basis of biochemical characteristics. Antibiotic susceptibility profiles were determined using the agar diffusion method. blaCTX-M resistance genes and quinolone resistance genes (plasmid-mediated quinolone resistance) were detected by conventional polymerase chain reaction.
Results: Among 115 bacterial strains obtained, 26 were extended-spectrum beta-lactamase (ESBL)-producing enterobacteria: Escherichia coli (15), Klebsiella pneumoniae (6), Enterobacter cloacae (4), and Morganella morganii (1). Carriers were statistically more important in hospitals (12/26, p = 0.03). No carbapenem-resistance strains were observed. We identified ESBL resistance genes (Cefotaximase Munich; CTX-M group 1) (25/26) and quinolone resistance genes (QnrS) (6/26).
Conclusion: Houseflies in the city of Bobo-Dioulasso are vectors for the transmission of multidrug-resistant enterobacteria. There is a need to monitor the associated risks for public health. Keywords: Bobo-Dioulasso, extended-spectrum beta-lactamase, Gram-negative bacilli, housefly, multiresistant Enterobacteriaceae.
                      
Keywords: Bobo-Dioulasso, extended-spectrum beta-lactamase, Gram-negative bacilli, housefly, multiresistant Enterobacteriaceae.