Skip to main content

Table 3 Antimicrobial resistance among Salmonella and Shigella isolates by serovars

From: Prevalence and antibiotic resistance of bacterial pathogens isolated from childhood diarrhea in Beijing, China (2010–2014)

Antimicrobial No. (%) resistance of Salmonella species No. (%) resistance of Shigella species
S. enteritidis (n = 35) S. typhimurium (n = 15) 1, 4, [5], 12:i:- (n = 13) S. agona (n = 10) Overall (n = 109) S. sonnei (n = 32) S. flexneri (n = 4) S. dysenteriae (n = 1) Overall (n = 37)
AMP 21 (60.0) 12 (80.0) 11 (84.6) 1 (10.0) 51 (46.8) 31 (96.9) 4 (100.0) 0 (0.0) 35 (94.6)
CHL 3 (8.6) 8 (53.3) 4 (30.8) 1 (10.0) 18 (16.5) 2 (6.3) 4 (100.0) 0 (0.0) 6 (16.2)
CIP 1 (2.9) 6 (40.0) 3 (23.1) 0 (0.0) 10 (9.2) 0 (0.0) 1 (25.0) 0 (0.0) 1 (2.7)
CRO 7 (20.0) 0 (0.0) 2 (15.4) 0 (0.0) 10 (9.2) 10 (31.3) 1 (25.0) 0 (0.0) 11 (29.7)
GEN 3 (8.6) 7 (46.7) 3 (23.1) 1 (10.0) 14 (12.8) 30 (93.8) 0 (0.0) 0 (0.0) 30 (81.1)
NAL 34 (97.1) 9 (60.0) 5 (38.5) 1 (10.0) 61 (56.0) 32 (100.0) 4 (100.0) 0 (0.0) 36 (97.3)
STR 15 (42.9) 10 (66.7) 12 (92.3) 2 (20.0) 48 (44.0) 32 (100.0) 4 (100.0) 1 (100.0) 37 (100.0)
SUL 19 (54.3) 12 (80.0) 9 (69.2) 2 (20.0) 60 (55.0) 32 (100.0) 1 (25.0) 1 (100.0) 34 (91.9)
TET 7 (20.0) 10 (66.7) 10 (76.9) 1 (10.0) 32 (29.4) 12 (37.5) 4 (100.0) 1 (100.0) 17 (45.9)
Multidrug-resistance (MDR)
 MDR3 22 (62.9) 12 (80.0) 11 (84.6) 1 (10.0) 54 (50.0) 32 (100) 4 (100.0) 1 (100) 37 (100)
 MDR4 17 (48.6) 12 (80.0) 9 (69.2) 1 (10.0) 45 (41.3) 31 (96.9) 4 (100.0) 0 (0.0) 35 (94.6)
 MDR5 7 (20.0) 10 (66.7) 5 (38.5) 1 (10.0) 25 (22.9) 31 (96.9) 4 (100.0) 0 (0.0) 35 (94.6)
 MDR6 2 (5.7) 7 (46.7) 4 (30.8) 1 (10.0) 14 (12.8) 18 (56.3) 3 (75.0) 0 (0.0) 21 (56.8)
  1. For 109 Salmonella isolates, two dominant resistance patterns are AMP-STR-SUL-TET (n = 7, 6.4 %) and AMP-STR-SUL-NAL (n = 6, 5.5 %)
  2. For 37 Shigella isolates, two dominant resistant patternsare AMP-GEN-NAL-STR-SUL (n = 12, 32.4 %) and AMP-GEN-NAL-STR-SUL-TET (n = 8, 21.6 %)
  3. AMP ampicillin, CRO ceftriaxone, CIP ciprofloxacin, NAL nalidixic acid, TET tetracycline, GEN gentamicin, CHL chloramphenicol, SUL sulfisoxazole, STR streptomycin, MDR3 resistance to any three antibiotics, MDR4 resistance to any four antibiotics and so on