About: Molecular screening and risk factors of enterotoxigenic Escherichia coli and Salmonella spp. in diarrheic neonatal calves in Egypt

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	Molecular screening and risk factors of enterotoxigenic Escherichia coli and Salmonella spp. in diarrheic neonatal calves in Egypt
Creator	El-Khodery, Sabry Osman, Salama Ahmed, Ashraf El-Naker, Yasser Younis, Emad
source	Elsevier; Medline; PMC
abstract	Abstract The aim of the present study was to carry out molecular epidemiological investigation on enterotoxigenic Escherichia coli (ETEC) K99 and Salmonella spp. in diarrheic neonatal calves. Fecal samples were obtained from 220 diarrheic calves at 9 farms related to four governorates in central and northern Egypt. E. coli and Salmonella spp. isolates were examined for E. coli K99 and Salmonella spp. using PCR. ETEC K99 was recovered from 20 (10.36 %) out of 193 isolates, whereas Salmonella spp. was recovered from nine calves (4.09%). Multivariable logistic regression was used to evaluate the risk factors associated with both infections. ETEC K99 was significantly affected by age (P <0.01; OR: 1.812; CI 95%: 0.566–1.769), colostrum feeding practice (P <0.01; OR: 5.525; CI 95%: 2.025–15.076), rotavirus infection (P <0.001; OR: 2.220; CI 95%: 0.273–1.251), vaccination of pregnant dams with combined vaccine against rotavirus, coronavirus and E. coli (K99) (P <0.001; OR: 4.753; CI 95%: 2.124–10.641), and vitamin E and selenium administration to the pregnant dam (P <0.01; OR: 3.933; CI 95%: 0.703–1.248). Infection with Salmonella spp. was found to be significantly affected by the animal age (P <0.05; OR: 0.376; CI 95%: 0.511–1.369), Hygiene (P <0.05; OR: 0.628; CI 95%: 1.729–5.612), and region (P <0. 01; OR: 0.970; CI 95%: 0.841–1.624). The results of the present study indicate the importance of PCR as rapid, effective and reliable tool for screening of ETEC and Salmonella spp. when confronted with cases of undifferentiated calf diarrhea. Moreover, identification of the risk factors associated with the spreading of bacteria causing diarrhea may be helpful for construction of suitable methods for prevention and control.
has issue date	2009-12-31(xsd:dateTime)
bibo:doi	10.1016/j.rvsc.2009.04.006
bibo:pmid	19419742
has license	els-covid
sha1sum (hex)	0f3b15de7bb9b3622e3cd8aaf89d7138ad2fa0c7
schema:url	https://doi.org/10.1016/j.rvsc.2009.04.006
resource representing a document's title	Molecular screening and risk factors of enterotoxigenic Escherichia coli and Salmonella spp. in diarrheic neonatal calves in Egypt
has PubMed Central identifier	PMC7111881
has PubMed identifier	19419742
schema:publication	Research in Veterinary Science
resource representing a document's body	covid:0f3b15de7bb9b3622e3cd8aaf89d7138ad2fa0c7#body_text
is schema:about of	named entity 'isolates' named entity 'central' named entity 'molecular' named entity 'calves' named entity 'INVESTIGATION' »more»

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