Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
29
pubmed:dateCreated
2010-6-14
pubmed:abstractText
In order to identify the appropriate strains to use in vaccination trials against heartwater in Burkina Faso, the protective effect of Gardel and Welgevonden strains was assessed against local strains on sheep vaccinated by infection-and-treatment method: Gardel protected significantly against Burkina Faso strains tested (survival rate 59% for immunised sheep vs 13% for control sheep) while Welgevonden did not (survival rate 45% for immunised sheep vs 25% for control sheep). The efficacy of the ISA50 inactivated vaccine, produced under industrial process, was evaluated in sheep during field challenges in two successive years. During year 1, there was a limited protective effect of the Gardel vaccine with 65% of survival rate for the vaccinated group compared to 49% for the control group (N=153, p=0.053). During year 2, the vaccine containing Gardel and a local strain gave an increased protective effect compared to the first trial: 72% of the vaccinated animals survived compared to 47% of the naïve animals (N=173, p<0.001). There was an important genetic diversity of strains in the field with detection of 11 different map1 genotypes in brains from control and vaccinated sheep post mortem. Map1 genotyping of strains detected in brains from control sheep showed that genotype distribution varied according to time and study areas, which could explain the difference in efficacy of the vaccine.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1873-2518
pubmed:author
pubmed:copyrightInfo
(c) 2010 Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
23
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4573-80
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Efficiency of inactivated vaccines against heartwater in Burkina Faso: impact of Ehrlichia ruminantium genetic diversity.
pubmed:affiliation
CIRDES (Centre International de Recherche-Développement sur l'Elevage en zone Sub-humide), BP 454, Bobo-Dioulasso 01, Burkina Faso.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't