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Abstract
A total of 56 E.coli isolates and 8 salmonella isolates were identified biochemically by lactose fermentation , indole, citrate methyl red ,V P,TSI and sugar fermentation tests these isolates
were studied for antimicrobial susceptibility patterns by disk
diffusion method and micro dillution method. Chromosomal DNA and plasmide of 8 E.coli isolates included in this study were subject to PCR with primers specific to blaTEM, bla SHY ,bla
OXAgenes.
Antimicrobial susceptibility patterns Of 56 E.coli isolates
examined by disk diffusion test out of 56 E.coli isolates 12
isolates were resistant to cefotaxime (21.4%), 55 isolates were resistant to oxacillin (98.2%) withAbsence of complete susceptibility to oxacillin, 20 isolates were resistant to Gentamicin (35.7%) ,19 isolates were resistant to enrofloxacin (33.9%), 54
isolates were resistant to doxycyclin (96.4%) with absence of
complete susceptibility to doxycyclin 9 isolates were resistant to
Lincospectin (16%) ,54 isolates were resistant to Amoxicillin (96.4
%) with absence of complete susceptibility to Amoxicillin ,50
isolates were resistant to amoxicillin- clavulanic acid (89.3%)and
47 isolates were resistant to ampicillin - sulbacatam(83.9%).
Antimicrobial susceptibility patterns of 8