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Table 1 Distribution of tet(M), tet(O), tet(S), tet(K) and erm(B) determinants in E. faecalis isolates from pig feces (n = 73), German cockroach feces (n = 76) and house fly digestive tracts (n = 170)

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 21 (28.8) 35 (46.1) 39 (22.9) 90.5 97.4 94.3
tet(O) only - - 1 (0.6) - - 66.6
tet(K) only - - 8 (4.7) - - 100
tet(S) only - - 1 (0.6) - - 100
erm(B) only 3 (4.1) 2 (2.6) 11 (6.5) 100 50.0 92.3
tet(M) + erm(B) 24 (32.9) 33 (43.4) 66 (38.8) 100/87.5 100/90.0 100/98.4
tet(O) + erm(B) - - 3 (1.8) - - 100/100
tet(S) + erm(B) - - 1 (0.6) - - 100/100
tet(K) + erm(B) 1 (1.4) - - 100/100 - -
tet(M) + tet(O) - 1 (1.3) 3 (1.8) - 100 100
tet(M) + tet(O) + erm(B) - 1 (1.3) 7 (4.1) - 100/100 100/100
tet(M) + tet(K) + erm(B) 21 (28.8) - 8 (4.7) 100/95.2 - 100/87.5
tet(M) + tet(S)+ erm(B) - 1 (1.3) 2 (1.2) - 100/100 100/100
Isolates with no detected tet and erm(B) determinants 3 (4.1) 3 (3.9) 20 (11.8) 100/100 33.3/66.6 70.0/80.0