Table 5 Antimicrobial susceptibility of streptococci isolated from bovine clinical mastitis
From: Udder pathogens and their resistance to antimicrobial agents in dairy cows in Estonia
Str. agalactiae | Str. dysgalactiae | Str. uberis | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Disc content in μg | n | S* (%) | I* (%) | R* (%) | n | S* (%) | I* (%) | R* (%) | n | S* (%) | I* (%) | R* (%) |
Ampicillin 10 μg | 162 | 100 | - | 0 | 111 | 100 | 0 | 0 | 265 | 99.6 | 0 | 0.4 |
Penicillin 10 μg | 168 | 100 | - | 0 | 111 | 100 | 0 | 0 | 267 | 99.6 | 0 | 0.4 |
Cephalothin 30 μg | 143 | 100 | - | 0 | 101 | 100 | 0 | 0 | 254 | 99.6 | 0 | 0.4 |
Clindamycin 2 μg | 161 | 91.9 | 1.9 | 6.2 | 115 | 92.2 | 0 | 7.8 | 273 | 92 | 1.4 | 6.6 |
Erythromycin 15 μg | 77 | 96.1 | 2.6 | 1.3 | 60 | 88.3 | 5 | 6.7 | 134 | 89.6 | 2.2 | 8.2 |
Tetracycline 30 μg | 151 | 78.1 | 7.3 | 14.6 | 90 | 48.9 | 18.9 | 32.2 | 234 | 79.9 | 3.4 | 19.7 |
Trimethoprim/sulfa 1.25/23.75 μg | 140 | 93.6 | 0 | 6.4 | 103 | 99 | 0 | 1 | 223 | 95.9 | 0.9 | 3.2 |
Gentamycin 10 μg | 143 | 63.6 | 11.9 | 24.5 | 88 | 88.6 | 0 | 11.4 | 210 | 71.9 | 9.5 | 18.6 |