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Table 2 Antimicrobial susceptibility of Thai Streptococcus suis isolated from human patients (27 strains), diseased pigs (46 strains), and asymptomatic pigs (189 strains)

From: Antimicrobial susceptibility of Streptococcus suis isolated from diseased pigs, asymptomatic pigs, and human patients in Thailand

Antibiotic drugs Human patients 27 strains Diseased pigs 46 strains Asymptomatic pigs 189 strains P-value
S I R S I R S I R  
AMP 27 (100%) 0 (0%) 0 (0%) 40 (86.9%) 2 (4.4%) 4 (8.7%) 125 (66.1%) 23 (12.2%) 41 (21.7%) 0.001*
CFL 27 (100%) 0 (0%) 0 (0%) 34 (73.9%) 1 (2.2%) 11 (23.9%) 104 (55.0%) 4 (2.1%) 81 (42.9%) <  0.001*
CTX 27 (100%) 0 (0%) 0 (0%) 38 (82.6%) 2 (4.4%) 6 (13.0%) 179 (94.7%) 2 (1.1%) 8 (4.2%) 0.029*
CTF 27 (100%) 0 (0%) 0 (0%) 39 (84.8%) 3 (6.5%) 4 (8.7%) 182 (96.3%) 2 (1.1%) 5 (2.6%) 0.018*
PEN 27 (100%) 0 (0%) 0 (0%) 33 (71.7%) 8 (17.4%) 5 (10.9%) 59 (31.2%) 79 (41.8%) 51 (27.0%) <  0.001*
VAN 27 (100%) 0 (0%) 0 (0%) 42 (91.3%) 1 (2.2%) 3 (6.5%) 184 (97.4%) 4 (2.1%) 1 (0.5%) 0.042*
AZM 5 (18.5%) 0 (0%) 22 (81.5%) 9 (19.6%) 0 (0%) 37 (80.4%) 26 (13.8%) 4 (2.1%) 159 (84.1%) 0.619
CHL 24 (88.9%) 3 (11.1%) 0 (0%) 37 (80.4%) 4 (8.7%) 5 (10.9%) 168 (88.9%) 10 (5.3%) 11 (5.8%) 0.254
CLI 5 (18.5%) 0 (0%) 22 (81.5%) 5 (10.9%) 0 (0%) 41 (89.1%) 7 (3.7%) 0 (0%) 182 (96.3%) 0.006*
DOX 0 (0%) 0 (0%) 27 (100%) 2 (4.4%) 2 (4.4%) 42 (91.3%) 22 (11.6%) 3 (1.6%) 164 (86.8%) 0.114
ERY 4 (14.8%) 4 (14.8%) 19 (70.4%) 9 (19.6%) 1 (2.2%) 36 (78.2%) 30 (15.9%) 2 (1.1%) 157 (83.0%) 0.001*
FFC 26 (96.3%) 1 (3.7%) 0 (0%) 36 (78.2%) 0 (0%) 10 (21.8%) 180 (95.3%) 1 (0.5%) 8 (4.2%) <  0.001*
GEN 22 (81.5%) 3 (11.1%) 2 (7.4%) 11 (23.9%) 9 (19.6%) 26 (56.5%) 67 (35.5%) 49 (25.9%) 73 (38.6%) <  0.001*
TET 0 (0%) 0 (0%) 27 (100%) 3 (6.5%) 2 (4.4%) 41 (89.1%) 10 (5.3%) 5 (2.6%) 174 (92.1%) 0.552
TIA 0 (0%) 23 (85.2%) 4 (14.8%) 4 (8.7%) 5 (10.9%) 37 (80.4%) 2 (1.1%) 17 (9.0%) 170 (89.9%) <  0.001*
CIP 20 (74.1%) 5 (18.5%) 2 (7.4%) 32 (69.5%) 5 (10.9%) 9 (19.6%) 103 (54.5%) 26 (13.8%) 60 (31.7%) 0.048*
ENR 15 (55.6%) 12 (44.4%) 0 (0%) 23 (50.0%) 15 (32.6%) 8 (17.4%) 105 (55.6%) 29 (15.3%) 55 (29.1%) <  0.001*
NOR 5 (18.5%) 19 (70.4%) 3 (11.1%) 13 (28.3%) 13 (28.3%) 20 (43.4%) 47 (24.9%) 41 (21.7%) 101 (53.4%) <  0.001*
LEV 27 (100%) 0 (0%) 0 (0%) 41 (89.1%) 1 (2.2%) 4 (8.7%) 134 (70.9%) 5 (2.6%) 50 (26.5%) 0.003*
SXT 27 (100%) 0 (0%) 0 (0%) 18 (39.1%) 6 (13.0%) 22 (47.9%) 50 (26.5%) 4 (2.1%) 135 (71.4%) <  0.001*
  1. AMP ampicillin, AZM azithromycin, CTX cefotaxime, CTF ceftiofur, CFL cephalexin, CHL chloramphenicol, CIP ciprofloxacin, CLI clindamycin, DOX doxycycline, ENR enrofloxacin, ERY erythromycin, FFC florfenicol, GEN gentamiycin, LEV levofloxacin, NOR norfloxacin, PEN penicillin G, SXT sulfamethoxazole/trimethoprim, TET tetracyclin, TIA tiamulin, VAN: vancomycin. S susceptible; I intermediate; R resistant. The asterisk indicates statistical significance with P-value < 0.05