TABLE 2.
Antimicrobial resistance phenotype and genotype of the macrolide and lincosamide resistant β-hemolytic streptococcal isolates.
| Microbe | n | Phenotype | (n) | Genotype (n) |
| S. pyogenes | 15 | iMLSB | (1) | erm(A) (1) |
| cMLSB | (14) | erm(B) (14) | ||
| M | (0) | |||
| L | (0) | |||
| Tet R | (14) | tet(M) (14) | ||
| S. agalactiae | 53 | iMLSB | (7) | erm(A) (6), erm(T) (1) |
| cMLSB | (38) | erm(A) (8), erm(B) (26), erm(B) + lsa(C) (2), erm(B) + lsa(E) + lnu(B) (1), ND (1) | ||
| M | (6) | mef(A) (6) | ||
| L | (2) | lsa(C) (2) | ||
| Tet R | (50) | tet(M) (31), tet(O) (17), tet(M) + tet(O) (2) | ||
| S. dysgalactiae | 19 | iMLSB | (11) | erm(A) (11) |
| cMLSB | (6) | erm(A) (3), erm(B) (3) | ||
| M | (1) | mef(A) (1) | ||
| L | (1) | lsa(C) (1) | ||
| Tet R | (6) | tet(M) (4), tet(O) (1), tet(M) + tet(O) (1) |
n, number of isolates; MLSB, macrolide, lincosamide, streptogramin B; iMLSB, inducible MLSB-resistance; cMLSB, constitutive MLSB-resistance, M, macrolide resistance alone; L, lincosamide resistance alone; Tet R, tetracycline resistance; ND, no resistance gene detected.