Classical swine fever (CSF) is considered one of the most important diseases of swine because of the far-reaching economic impact the disease causes to affected countries and regions. The state of Mato Grosso (MT) is part of Brazil's CSF-free zone. CSF status is uncertain in some of MT's neighboring States and countries, which has resulted in the perception that MT is at high risk for the disease. However, the risk for CSF introduction into MT has not been previously assessed. Here, we estimated that the risk for CSF introduction into the MT is highly heterogeneous. The risk associated with shipment of commercial pigs was concentrated in specific municipalities with intense commercial pig production, whereas the risk associated with movement of wild boars was clustered in certain municipalities located close to the state's borders, mostly in northern and southwestern MT. Considering the two pathways of possible introduction assessed here, these results demonstrate the importance of using alternative strategies for surveillance that target different routes and account for different likelihoods of introduction. These results will help to design, implement, and monitor surveillance activities for sustaining the CSF-free status of MT at times when Brazil plans to expand the recognition of disease-free status for other regions in the country.
Bibliographical noteFunding Information:
The authors would like to thank the collaboration of the Official Veterinary Service of Mato Grosso, Brazil (INDEA/MT), and the Ministry of Agriculture, Livestock and Food Supply of Brazil (MAPA) for releasing the data necessary for this study. The authors would like to thank Dr. Rachel Schambow for her help in editing the manuscript.
© Copyright © 2021 Schettino, Korennoy and Perez.
- Mato Grosso
- classical swine fever
- domestic pigs
- risk assessment
- wild boars
PubMed: MeSH publication types
- Journal Article