Virulence and Antibiotic Resistance Profiles of Cronobacter sakazakki and Enterobacter ssp. Involved in the Diarrheic Hemorrhagic Outbreak in Mexico

Cronobacter spp. are bacterial pathogens that cause neonatal meningitis, septicemia, and necrotizing enterocolitis in infants with a lethality rate of 40-80%. Powdered infant formulas (PIF) have been implicated as the main vehicles of transmission. This pathogen can also cause infection through cont...

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Bibliographic Details
Author: Parra-Flores, Julio
Format: article
Status:Published version
Publication Date:2018
Country:México
Institution:Instituto Nacional de Salud Pública
Repository:Repositorio Institucional Abierto de Conocimiento en Salud Pública
Language:Spanish
OAI Identifier:oai:repositorio.insp.mx:20.500.12096/7773
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2018.02206/full
https://www.doi.org/10.3389/fmicb.2018.02206
http://repositorio.insp.mx:8080/jspui/handle/20.500.12096/7773
Access Level:Open access
Keyword:SD,Cronobacter sakazakii, Enterobacter hormaechei antibiogram powdered infant formula virulence.
info:eu-repo/classification/cti/3
Description
Summary:Cronobacter spp. are bacterial pathogens that cause neonatal meningitis, septicemia, and necrotizing enterocolitis in infants with a lethality rate of 40-80%. Powdered infant formulas (PIF) have been implicated as the main vehicles of transmission. This pathogen can also cause infection through contaminated expressed breast milk, and it has been recovered from neonatal feeding tubes of neonates not fed reconstituted PIF and milk kitchen areas. This study analyzed antibiotic resistance profiles and the tissue virulence tests of Cronobacter sakazakii and Enterobacter spp. recovered from PIF, infant fecal matter's, and milk kitchen environment involved in a diarrheic hemorrhagic outbreak in 2011 in Mexico. The strains isolated from the outbreak had similar antibiotic resistance profiles and pathogenicity irrespective of isolation site, however, C. sakazakii strains isolated from PIF showed significantly higher invasive profiles than Enterobacter spp. (p = 0.001) and 83% were resistant to more than one antibiotic. The findings of this study can be used to complement existing information to better control Cronobacter and Enterobacter spp. contamination in PIF production, prevent its transmission, and improve infant food safety.