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1.
Artículo en Inglés | WPRIM | ID: wpr-311373

RESUMEN

Infections by Cronobacter spp. are hazardous to infants since they can lead to neonatal meningitis, bacteremia, and necrotizing enterocolitis. Cronobacter spp. are frequently resistant to β-lactam derivatives, macrolides, and aminoglycosides. In addition, multi-resistant strains have also been detected. In China, the isolation rate of Cronobacter spp. from commercial powdered infant formula (PIF) or follow-up formula (FUF) is relatively high. Nevertheless, clinical cases of Cronobacter infection have been ignored to date. Here we describe two cases of Cronobacter infection detected at the Wuhan Women and Children Medical Care Center Hospital (Wuhan City, China). We provide the genomic analysis of the isolates and the antibiotic-resistance profiles of the two strains. The Cronobacter strains identified in this study were not susceptible to third-generation cephalosporins, aminoglycoside, and/or trimethoprim-sulfamethoxazole. Whole genome sequencing revealed various genes known to encode antibiotic resistance. Future studies are needed to determine whether the genes predicted in this study are functional. As with Enterobacter spp., the antibiotic resistance of Cronobacter is a serious issue that requires more attention.


Asunto(s)
Femenino , Humanos , Lactante , Antibacterianos , Farmacología , Cronobacter , Farmacorresistencia Bacteriana Múltiple , Resultado Fatal , Infecciones por Bacterias Gramnegativas , Microbiología , Meningitis Bacterianas , Microbiología
2.
Artículo en Inglés | WPRIM | ID: wpr-247121

RESUMEN

A total of 7 Cronobacter strains were isolated from 703 fecal samples collected in Jinan from June 13 to December 30, 2011, with the positive rate of Cronobacter spp. being 1.0% (95% confidence interval 0.6%-1.4%). Three Cronobacter sakazakii stains were isolated from 157 fecal samples of healthy neonates (95% confidence interval 0.4%-5.5%). This number was slightly higher than that isolated from 273 fecal samples of healthy adults, in which 1 strain of C. sakazakii and 1 strain of Cronobacter malonaticus were isolated, and that from 173 fecal samples of adults with acute diarrhea, in which 1 strain of C. sakazakii and 1 strain of C. malonaticus were isolated, but the differences were not statistically significant (P>0.05). The Cronobacter isolates were all from different genetic sources. It should be noted that Cronobacter carriage may cause infection under certain conditions, especially in neonates.


Asunto(s)
Humanos , Recién Nacido , Técnicas de Tipificación Bacteriana , Cronobacter , Cronobacter sakazakii , Microbiología de Alimentos
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