The Pearson chi-squared test did not show any significant association between ERIC types (E1–E15) and phylo-groups (p value = 0.578), ERIC types and AMR (Table 6), and phylo-groups and AMR (Table 6), confirming the independence of these characteristics. Furthermore, Pearson chi-square calculated for the water/cattle and the phylo-groups was 0.1 (p value = 0.1) which rejects any correlation between water/cattle and phylo-groups.

Table 6

Pearson chi-square between phylo-groups and antibiotic resistance

Antibiotic resistanceERIC typesPhylo-groups
Cefotaxime 0.6 0.518
Cefalotin 0.136 0.781
Trimethoprim/sulfamethoxazole 0.249 0.43
Amoxicillin/clavulanic 0.13 0.09
Ampicillin 0.144 0.41
Streptomycin 0.377 0.3
Gentamycin 0.824 0.1
Nalidixic acid 0.1 0.12
Chloramphenicol 0.28 0.09
Tetracycline 0.25 0.03
Antibiotic resistanceERIC typesPhylo-groups
Cefotaxime 0.6 0.518
Cefalotin 0.136 0.781
Trimethoprim/sulfamethoxazole 0.249 0.43
Amoxicillin/clavulanic 0.13 0.09
Ampicillin 0.144 0.41
Streptomycin 0.377 0.3
Gentamycin 0.824 0.1
Nalidixic acid 0.1 0.12
Chloramphenicol 0.28 0.09
Tetracycline 0.25 0.03

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