Carriage of ESBL-producing Gram-negative bacteria by flies captured in a hospital and its suburban surroundings in Ethiopia

Table 2 Proportion of ESBL expression among GNB isolates from flies trapped from hospital compound and butchery

Bacterial species	ESBL positive n (%)	ESBL negative n (%)	Total n
Raoultella spp.	6 (67%)	3 (33%)	9
Kluyvera spp.	4 (67%)	2 (33%)	6
Enterobacter spp.	5 (56%)	4 (44%)	9
Escherichia coli	5 (50%)	5 (50%)	10
Citrobacter spp.	5 (50%)	5 (50%)	10
Klebsiella spp.	8 (44%)	10 (56%)	18
Providencia spp.	2 (29%)	5 (71%)	7
Proteus spp.	1 (13%)	7 (87%)	8
Moellerella wisconsensis	1 (10%)	9 (90%)	10
Others^a	3 (30%)	7 (70%)	10

^aOthers (one isolate each): Comamonas testosteroni, Pantoea agglomerans, and Rahnella aquatilis (ESBL expression); Aeromonas hydrophila, Cedecea davisae, Hafnia alvei, Leclercia adecarboxylata, Lelliottia amnigena, Serratia liquefaciens, and Yokenella regensburgei (no ESBL expression); Even though we found four isolates of Acinetobacter spp. from flies, the proportion of ESBL was not analyzed in this study. As described in (Fig. 1) above, the proportion of ESBL was near to similar in GNB isolated from clinical samples and flies caught in hospital compound. However, it was extremely low 1 (2%) in flies caught in butchery

ISSN: 2047-2994