Document Detail


Monitoring bluetongue disease (BTV-1) epidemic in southern Spain during 2007.
MedLine Citation:
PMID:  20663576     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
On the 25th of July 2007, bluetongue virus (BTV) serotype 1 was detected in Andalusia, southern Spain for the first time. A total of 4436 farms infected with BTV-1 were confirmed during that year: 3162 in sheep flocks, 113 in goat flocks, 7 in cattle herds and 1154 in mixed farms (sheep, goat and/or cattle in the same farm). The most common clinical signs were: fever, depression, lethargy, facial edema, and salivation (observed in more than 70% of the infected farms). Lesions in oral mucosa, lameness and dyspnea were also frequently observed. Median morbidity rate in sheep and goat flocks were 6.3% and 2.7% respectively. Median mortality rate was 2.2% in sheep flocks and 1.2% in goat flocks. Median case fatality rate was 29.8% in sheep flocks and 45% in goat flocks. Morbidity and mortality rates were not significantly higher in sheep flocks than in goat flocks (p>0.05), whereas case fatality rate was significant higher in goat flocks compared to sheep flocks (p<0.05). Neither clinical signs nor mortality were observed in cattle herds. The spatial distribution of the risk of BTV infection over Andalusia by municipality was evaluated by means of a hierarchical Bayesian model. The results evidenced that the risk was not homogeneous over the territory, being higher in the western part of the region. The likelihood of BTV infection was increased between 1.01 and 1.16 times by an increase of 10,000 domestic ruminants, and between 1.01 and 1.69 times by the presence of red deer (Cervus elaphus) in the municipality.
Authors:
A Allepuz; I García-Bocanegra; S Napp; J Casal; A Arenas; M Saez; M A González
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Preventive veterinary medicine     Volume:  96     ISSN:  1873-1716     ISO Abbreviation:  Prev. Vet. Med.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-08-27     Completed Date:  2010-11-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8217463     Medline TA:  Prev Vet Med     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  263-71     Citation Subset:  IM    
Copyright Information:
2010 Elsevier B.V. All rights reserved.
Affiliation:
Centre de Recerca en Sanitat Animal (CReSA), UAB-IRTA, Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain. alberto.allepuz@uab.es
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MeSH Terms
Descriptor/Qualifier:
Animals
Bayes Theorem
Bluetongue / epidemiology*,  mortality,  virology
Bluetongue virus / classification
Cattle
Cattle Diseases / epidemiology*,  mortality,  virology
Demography
Female
Goat Diseases / epidemiology*,  mortality,  virology
Goats
Male
Morbidity
Risk Factors
Sentinel Surveillance / veterinary*
Serotyping / veterinary
Sheep
Spain / epidemiology
Species Specificity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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