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Table 2 Distribution of tet(M), tet(O), tet(S), tet(K) and erm(B) determinants in E. faecium isolates from pig feces (n = 60), German cockroach feces (n = 29) and house fly digestive tracts (n = 36).

From: Insects in confined swine operations carry a large antibiotic resistant and potentially virulent enterococcal community

Combination of determinants Number (%) of isolates Correlation with phenotype (%)
  Pig feces Cockroach feces House Flies Pig feces Cockroach feces House Flies
tet(M) only 29 (48.3) 16 (55.2) 13 (36.1) 100 100 87.5
tet(O) only 5 (8.3) 0 0 100 - -
tet(S) only 2 (3.3) 2 (6.9) 8 (22.2) 100 100 100
erm(B) only 2 (3.3) 0 0 100 - -
tet(M) + erm(B) 15 (25.0) 2 (6.9) 5 (13.9) 100/89.7 100/50 80.0/60.0
tet(S) + erm(B) 1 (1.7) 1 (3.4) 1 (2.8) 100/100 100/100 100/100
tet(O) + erm(B) 0 1 (3.4) 1 (2.8)   100/100 100/100
tet(M) + tet(O) + tet(S) + erm(B) 1 (1.7) 0 1 (2.8) 100/100 - 100/100
Isolates with no detected tet and erm(B) determinants 6 (10.0) 7 (24.1) 8 (22.2) 66.6/66.6 0.0/50.0 25.0/37.5