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Volume 31, Number 10—October 2025
Research
Comparative Epidemiology of Salmonella Paratyphi A and Salmonella Typhi Causing Enteric Fever, Bangladesh, 2018–2020
Table 6
Antimicrobial resistance of Salmonella Paratyphi A and Salmonella Typhi isolates from the dynamic cohort in epidemiologic study, Bangladesh, 2018–2020*
Drug | No. resistant (%) |
p value | |
---|---|---|---|
Salmonella Paratyphi A isolates from all clusters, n = 121 | Salmonella Typhi isolates from JE clusters, n = 483 | ||
Ampicillin | 1/121 (0.8) | 194/482 (40.2) | <0.001 |
Chloramphenicol | 2/121 (1.7) | 120/479 (25.1) | <0.001 |
Trimethoprim/sulfamethoxazole | 1/120 (0.8) | 122/482 (25.3) | <0.001 |
Amoxiclav | 0/121 (0.0) | 38/482 (7.9) | <0.001 |
Azithromycin | 14/121 (11.6) | 9/483 (1.9) | <0.001 |
Cefixime | 0/121 (0.0) | 0/483 (0.0) | >0.999 |
Ceftriaxone | 0/121 (0.0) | 0/483 (0.0) | >0.999 |
Gentamicin | 0/121 (0.0) | 2/482 (0.4) | >0.999 |
Meropenem | 0/121 (0.0) | 0/482 (0.0) | >0.999 |
Ciprofloxacin† | 1/121 (0.8) | 57/483 (11.8) | <0.001 |
Nalidixic acid | 119/121 (98.3) | 456/483 (94.4) | 0.229 |
MDR for ampicillin, chloramphenicol, trimethoprim/sulfamethoxazole | 1/121 (0.8) | 97/480 (20.2) | <0.001 |
*p values determined by Fisher exact test. MDR, multidrug resistance. †Intermediate result for Salmonella Paratyphi A, 119/121 (98.3%); for Salmonella Typhi, 411/483 (85.1%).
1These first authors contributed equally to this article.
2Thes authors contributed as joint senior authors.
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