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

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

Source Total no. of isolates aResistant to ≥ one of beta-lactams (%) bla genes detectedb Not detected No.(%) positive for bla genes
blaTEM blaOXA10 blaCTX-M
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)
  1. aAmpicillin, Cephalothin, Cefoxitin, Ceftriaxone, amoxicillin and clavulanic acid
  2. bThough all isolates were screened for blaSHV, blaOXA1, blaOXA4, blaPER, blaPSE and blaCMY2, none of them were positive for these genes
  3. c blaOXA10 and blaCTX-M-15 were detected in a single isolate