Etiological characteristics and drug resistance of non-typhoid Salmonella in children with diarrhea in Henan Province from 2015 to 2018
10.3760/cma.j.cn112309-20200222-00070
- VernacularTitle:2015—2018年河南省儿童腹泻患者分离的非伤寒沙门菌病原特征及耐药性
- Author:
Yujiao MU
1
;
Dongxiao LI
;
Aiguo YOU
;
Baifan ZHANG
;
Jiayong ZHAO
;
Xiao HU
;
Xueyong HUANG
Author Information
1. 河南省疾病预防控制中心传染病预防控制所，郑州 450016
- From:
Chinese Journal of Microbiology and Immunology
2020;40(10):787-791
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the etiological characteristics and drug resistance of non-typhoid Salmonella isolated from stool samples of children under 5 years old with diarrhea in Henan Province. Methods:Intestinal bacteria were isolated from fecal samples of 4 250 diarrhea children under five years old in five monitoring sites in Henan Province from 2015 to 2018. Serotypes and drug sensitivity of Salmonella strains were analyzed. The annual change in drug resistance was analyzed by Chi-square test and all data were analyzed retrospectively. Results:The detection rate of non-typhoid Salmonella in fecal samples was 8.73% (371/4 250). The highest detection rate was in the 0-1 age group (51.75%) and the peak season for Salmonella infection was from May to October. The most common serotype was Salmonella enteritidis (36.93%), followed by 4, 5, 12: i: - Salmonella (14.82%) and Salmonella typhimurium (14.02%). The non-typhoid Salmonella isolates were resistant to ampicillin and sulfamethoxazole with drug resistance rates of more than 80%, but more sensitive to ceftazidime, cefepime and cefoxitin. There were significant differences in drug resistance to cefepime, levofloxacin, ciprofloxacin, amikacin, doxycycline, chloramphenicol and compound neoforman among the strains isolated in different years ( P<0.05). Multidrug-resistant strains accounted for 86.52%. Conclusions:There was diversity in the serotypes of non-typhoid Salmonella in diarrheal children under five years old in Henan Province. The predominant serotype was Salmonella enteritidis. Drug resistance to common antibiotics was detected in the isolates, and most of them were multidrug-resistant.
