Table 1. Number and antimicrobial resistance profiles of resistant Salmonella strains within each serogroup.
Sources (no. of isolates) | Serovar (no. of isolates) | Percentage of resistance (no. of isolates) | ||||||||||||||||
AMP | AMC | CEF | XNL | CHL | FFN | TET | DOX | KAN | GEN | AMI | SUL | TMP | ENR | NOR | CIP | POL | ||
Lin Yi (119) | Indiana (5) | 100 (5) | 100 (5) | 60 (3) | 60 (3) | 100 (5) | 60 (3) | 100 (5) | 100 (5) | 60 (3) | 60 (3) | 0 | 100 (5) | 100 (5) | 60 (3) | 80 (4) | 40 (2) | 0 |
Enteritidis (114) | 78.1 (89) | 42.1 (48) | 5.3 (6) | 6.1 (7) | 5.3 (6) | 0.9 (1) | 73.7 (84) | 73.7 (84) | 9.6 (11) | 1.8 (2) | 0 | 100(114) | 74.6 (85) | 0 | 2.7 (3) | 0.9 (1) | 0.9 (1) | |
Zou Ping (51) | Indiana (28) | 96.4 (27) | 82.1 (23) | 92.9 (26) | 85.7 (24) | 75 (21) | 96.4 (27) | 89.3 (25) | 92.9 (26) | 82.1 (23) | 85.7 (24) | 17.9(5) | 100 (28) | 96.4 (27) | 53.6(15) | 71.4 (20) | 53.6(15) | 7.1 (2) |
Enteritidis (23) | 69.6 (16) | 17.4 (4) | 17.4 (4) | 13.0 (3) | 4.3 (1) | 0 | 52.2 (12) | 43.5 (10) | 4.3 (1) | 4.3(1) | 4.3(1) | 100 (23) | 60.9 (14) | 0 | 4.3(1) | 13.0 (3) | 0 | |
Yan Tai (140) | Indiana (100) | 98 (98) | 89 (89) | 88 (88) | 87 (87) | 87 (87) | 91 (91) | 100 (100) | 100 (100) | 94 (94) | 96 (96) | 1 (1) | 100(100) | 100 (100) | 69 (69) | 81 (81) | 62 (62) | 5 (5) |
Enteritidis (40) | 62.5 (25) | 17.5 (7) | 5 (2) | 5 (2) | 0 | 0 | 55 (22) | 47.5 (19) | 2.5(1) | 12.5(5) | 2.5(1) | 100 (40) | 30 (12) | 0 | 2.5 (1) | 2.5 (1) | 12.5(5) | |
Total (310) | Indiana (133) | 97.7 (130) | 887.9 (117) | 87.9 (117) | 85.7(114) | 84.9(113) | 90.9(121) | 97.7(130) | 98.5(131) | 90.2(120) | 92.5(123) | 4.5(6) | 100(133) | 99.2(132) | 65.4(87) | 78.9(105) | 59.4(79) | 5.3 (7) |
Enteritidis (177) | 73 (130) | 33.3 (59) | 6.8 (12) | 6.8 (12) | 3.9 (7) | 0.6 (1) | 66.7(118) | 63.8(113) | 7.3(13) | 4.5(8) | 1.1(2) | 100(177) | 62.7(111) | 0 | 2.8(5) | 2.8 (5) | 3.4 (6) |
AMP, ampicillin; AMC, amoxicillin/clavulanic acid; CEF, cefalotin; XNL, ceftiofur; CHL, chloramphenicol; FFN, florfenicol; TET, tetracycline; DOX, doxycycline; KAN, kanamycin; GEN, gentamicin; AMI, amikacin; SUL, sulfamethoxazole; TMP, trimethoprim; ENR, enrofloxacin; NOR, norfloxacin; CIP, ciprofloxacin; POL, polymyxin.