Abstract:
BACKGROUND:Domestic cats play a key role in the epidemiology of the parasite Toxoplasma gondii by excreting environmentally-resistant oocysts that may infect humans and other warm-blooded animals. The dynamics of Toxoplasma gondii seroconversion, used as a proxy for primo-infection dynamics, was investigated in five cat populations living on farms. METHODS:Serological tests on blood samples from cats were performed every three months over a period of two years, for a total of 400 serological tests performed on 130 cats. Variations in seroconversion rates and associated factors were investigated using a multi-event capture-recapture modelling approach that explicitly accounted for uncertainties in cat age and serological status. RESULTS:Seroprevalence varied between farms, from 15 to 73%, suggesting differential exposure of cats to T. gondii. In farms with high exposure, cats could become infected before reaching the age of six months. Seroconversion rates varied from 0.42 to 0.96 seroconversions per cat per year and were higher in autumn and winter than in spring and summer. CONCLUSION:Our results suggest inter-farm and seasonal variations in the risks of exposure to T. gondii oocysts for humans and livestock living on farms. The paper also discusses the role of young cats in the maintenance of environmental contamination by T. gondii oocysts on farms.
journal_name
Parasit Vectorsjournal_title
Parasites & vectorsauthors
Simon JA,Pradel R,Aubert D,Geers R,Villena I,Poulle MLdoi
10.1186/s13071-018-2834-4subject
Has Abstractpub_date
2018-06-08 00:00:00pages
339issue
1issn
1756-3305pii
10.1186/s13071-018-2834-4journal_volume
11pub_type
杂志文章abstract:BACKGROUND:Aedes albopictus, the Asian tiger mosquito, is an exotic invasive species in Europe. It has substantial public health relevance due to its potential role in transmitting several human pathogens. Out of the European countries, Spain has one of the highest risk levels of autochthonous arbovirus transmission du...
journal_title:Parasites & vectors
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journal_title:Parasites & vectors
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journal_title:Parasites & vectors
pub_type: 杂志文章
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journal_title:Parasites & vectors
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journal_title:Parasites & vectors
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journal_title:Parasites & vectors
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journal_title:Parasites & vectors
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journal_title:Parasites & vectors
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journal_title:Parasites & vectors
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journal_title:Parasites & vectors
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