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1.
Geospat Health ; 11(2): 418, 2016 05 31.
Artigo em Inglês | MEDLINE | ID: mdl-27245800

RESUMO

Bovine fasciolosis, caused by Fasciola hepatica, is widespread in Switzerland. The risk regions were modelled in 2008 by an interactive map, showing the monthly potential risk of transmission of F. hepatica in Switzerland. As this map is based on a mathematical model, the aim of the present study was to evaluate the interactive map by means of a field survey taking different data sources into account. It was found that the interactive map has a sensitivity of 40.7-88.9%, a specificity of 11.4-18.8%, a positive predictive value of 26.7-51.4%, and a negative predictive value of 13.1-83.6%, depending on the source of the data. In conclusion, the grid of the interactive map (100 x 100 m) does not reflect enough detail and the underlying model of the interactive map is lacking transmission data.


Assuntos
Meio Ambiente , Fasciola hepatica/isolamento & purificação , Mapeamento Geográfico , Lymnaea , Análise Espacial , Animais , Bovinos , Reprodutibilidade dos Testes , Medição de Risco , Suíça , Tempo (Meteorologia)
2.
Vet Parasitol ; 154(3-4): 242-9, 2008 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-18495343

RESUMO

The intermediate host of Fasciola hepatica is Lymnaea truncatula in Switzerland. The snail and the free-living stages of the parasite require a moderate climate and moisture for survival, reproduction, and transmission. In Switzerland, these conditions are present in many regions, resulting in a mean prevalence of bovine fasciolosis from 8.4 to 21.4%. An interactive map was created in order to demonstrate the relative risk of transmission by modelling the environmental conditions that promote the survival and reproduction of the larval stages of the parasite and the parasite's intermediate host. The map is based on temperature and rainfall data, soil conditions including ground water and forest cover in Switzerland. Extensive information on the free-living stages of F. hepatica and the intermediate host L. truncatula and how the development of these are affected by these environmental factors was used to create the interactive risk map.


Assuntos
Fasciola hepatica/fisiologia , Lymnaea/parasitologia , Animais , Demografia , Fasciolíase/epidemiologia , Mapas como Assunto , Modelos Biológicos , Fatores de Risco , Suíça/epidemiologia , Interface Usuário-Computador
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