Bioclimatic distribution and prevalence maps for Fasciola hepatica in Espírito Santo State, Brazil

Journal of venomous animals and toxins

Alexandre R dos Santos¹  Deivid Franç⁴  Isabella VF Martins⁴  Daniel da Silva Gomes⁵  a Freitas⁸  Gleissy MADA dos Santos⁸ 

[1] Centro de CiêGraduate Program in Forest Sciences, School of Forest Sciences, Federal University of EspíGraduate Program in Pharmaceutical Sciences, School of Pharmaceutical Sciences, University of Vila Velha, Vila Velha, Brazil;Graduate Program in Veterinary Sciences, School of Veterinary Sciences, Federal University of Espíncias Agrárias, Universidade Federal do Espírito Santo, Alegre, Brasil;rito Santo, Alegre, Brazil

关键词: Maps;    Geographic information system (GIS);    Prevalence;    Fasciola hepatica;   

DOI  :  10.1186/1678-9199-20-32

学科分类：药理学

来源: BioMed Central

【 摘 要 】

Fasciolosis affects different ruminant species and leads to great economic losses for cattle farmers worldwide. Thus, the current study aimed to evaluate bovine fasciolosis prevalence in the state of Espírito Santo, Brazil, using slaughter maps provided by slaughterhouses and verifying the origin of cattle. A map was created based on analysis of epidemiological data. The ArcGIS/ArcINFO 10.1 software was employed in order to elaborate updated bioclimatic maps that displayed the fasciolosis prevalence within the state – per city– between 2009 and 2011. According to the bioclimatic map it was clear that 52.24% of the state’s total area comprise regions considered favorable for the development and survival of Fasciola hepatica. According to the data provided by slaughterhouses, the parasite was more frequent in the cities of Atílio Vivácqua, Itapemirim and Anchieta with respective prevalence of 28.41, 25.50 and 24.95%. Although the northern portion of the state is also favorable for the disease maintenance (reaching rates above 90%), several cities presented prevalence of only 0.99 and 1.94% respectively. These findings indicate that climatic and environmental factors only cannot be considered preponderant to fasciolosis occurrence. Regarding the slaughterhouse located in Anchieta city, the higher prevalence was registered in the cities of Jerônimo Monteiro, Alegre and Cachoeiro de Itapemirim, with mean prevalence of 1.21, 1.07 and 2.09% respectively. Although the present findings suggest a pattern for the prevalence of fasciolosis, records of the cities for the occurrence of the disease usually do not reflect the true origin of animals.

【 授权许可】

CC BY