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Table 3 Frequencies of colistin resistance genes among different bacterial isolates from different isolation sources

From: Evidence of colistin resistance genes (mcr-1 and mcr-2) in wild birds and its public health implication in Egypt

SampleTotal isolatesColistin resistance genes
mcr-1mcr-2Both
Resident birdsE. coli333 (9.1%)00
K. pneumoniae221 (4.5%)00
K. oxytoca4000
P. aeruginosa83 (37.5%)1 (12.5%)0
Total677 (10.4%)1 (1.4%)0
Migratory birdsE. coli296 (20.6%)1 (3.4%)1 (3.4%)
K. pneumoniae92 (22.2%)1 (11.1%)1 (11.1%)
K. oxytoca6000
P. aeruginosa113 (27.2%)00
Total5511 (20%)2 (3.6%)2 (3.6%)
WaterE. coli72 (28.5%)1 (14.2%)0
K. pneumoniae71 (14.2%)1 (14.2%)0
K. oxytoca1000
P. aeruginosa3000
Total183 (16.6%)2 (11.1%)0
HumansE. coli101 (10%)1 (10%)0
K. pneumoniae151 (6.6%)2 (13.3%)1 (6.6%)
K. oxytoca2000
P. aeruginosa4000
Total312 (6.4%)3 (9.6%)1 (3.2%)