Genetic markers associated with resistance to beta-lactam and quinolone antimicrobials in non-typhoidal Salmonella isolates from humans and animals in central Ethiopia

Table 3 Occurrence of bla genes in Salmonella isolates from different sources with reduced susceptibility to beta-lactam antimicrobials

Source	Total no. of isolates	^aResistant to ≥ one of beta-lactams (%)	bla genes detected^b			Not detected	No.(%) positive for bla genes
Source	Total no. of isolates	^aResistant to ≥ one of beta-lactams (%)	blaTEM	blaOXA10	blaCTX-M	Not detected	No.(%) positive for bla genes
Cattle	50	16(32)	12	-	-	4	8(75)
Poultry	26	13(50)	12	-		1	12(92.3)
Swine	8	2(25)	1	-	-	1	1(50)
Human	68	12(17.7)	9	1	1	2	^c10(83.3)
Total	152	43(28.3)	34	1	1	8	34(79.1)

^aAmpicillin, Cephalothin, Cefoxitin, Ceftriaxone, amoxicillin and clavulanic acid
^bThough all isolates were screened for blaSHV, blaOXA1, blaOXA4, blaPER, blaPSE and blaCMY2, none of them were positive for these genes
^c blaOXA10 and blaCTX-M-15 were detected in a single isolate

ISSN: 2047-2994