Table 1 Summary of the distribution of plasmid sizes, incompatibility groups and transconjugants in relation to the resistance phenotypes identified
Resistance phenotype | Plasmid size 42 MDa N (%) | Plasmid size 98 MDa N (%) | Incompatibility groups (N) | Resistance pattern of transconjugants (N) | ||
|---|---|---|---|---|---|---|
2004 | 2005 | 2006 | ||||
AMC,TET,C,AMP (N = 10) | 1 (1.0%) | 4 (4.1%) | HI(4) | – | – | AMC,TET,C,AMP(5) TET,C,AMP(1) AMC,AMP(1) TET(1) NT(2) |
CF,TET,C,AMP (N = 2) | 0 (0.0%) | 2 (2.0%) | HI(1) | HI(1) | – | TET,C,AMP(1) TET,AMP (1) NT(1) |
TET,C,AMP (N = 71) | 52 (53.0%) | 70 (71.4%) | HI(25), FIC(6), I(1) | HI(24), FIC(4), P(1) | HI(17), FIC(3) | TET,C,AMP(23) TET,AMP(4) C,AMP(1) TET(4) C(2) AMP(1) NT(21) |
Others (N = 11) | 0 (0.0%) | 2 (2.0%) | HI(1) | – | – | – |