Implications of partial culling on African swine fever control effectiveness in Vietnam.

Autor: Nga BTT; Department of Veterinary Medicine, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam., Padungtod P; Food and Agriculture Organization of the United Nations (FAO), Country Office for Vietnam, Hanoi, Vietnam., Depner K; Institute of International Animal Health/One Health, Friedrich-Loeffler-Institut, Greifswald, Germany., Chuong VD; Department of Animal Health, Ministry of Agriculture and Rural Development, Hanoi, Vietnam., Duy DT; Department of Infectious Diseases and Veterinary Public Health, Faculty of Animal Science and Veterinary Medicine, Nong Lam University, Ho Chi Minh City, Vietnam., Anh ND; Department of Veterinary Medicine, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam., Dietze K; Institute of International Animal Health/One Health, Friedrich-Loeffler-Institut, Greifswald, Germany.
Jazyk: angličtina
Zdroj: Frontiers in veterinary science [Front Vet Sci] 2022 Sep 06; Vol. 9, pp. 957918. Date of Electronic Publication: 2022 Sep 06 (Print Publication: 2022).
DOI: 10.3389/fvets.2022.957918
Abstrakt: The introduction of the African swine fever (ASF) into previously unaffected countries often overwhelms veterinary authorities with the resource demanding control efforts that need to be undertaken. The approach of implementing total stamping out of affected herds is taken as "default" control measure in many countries, regardless of the transboundary animal disease addressed, leading to a variety of challenges when implemented. Apart from the organizational challenges and high demand for human and financial resources, the total stamping out approach puts a high burden on the livelihoods of the affected farmers. After the spread of ASF throughout the country in 2019, Vietnam changed the culling approach enabling partial culling of only affected animals in the herd, in order to save resources, and reduce the environmental impact because of the carcass disposal and allow farmers to protect valuable assets. Until now, field data comparing these disease control options in their performance during implementation has not been evaluated scientifically. Analyzing the effect of the change in a control policy, the present study concludes that partial culling can on average save over 50% of total stock with an 8-day prolongation of the implementation of control measures. With 58% of farms undergoing partial culling scoring high on a time-livelihoods matrix, while total stamping out fails to score on livelihoods, much-needed clarity on the livelihood-protecting effects of alternative culling strategies is given. In the future, this will allow veterinary authorities to adjust control measures according to differing priorities, targeting peculiarities of ASF and acknowledging resource constraints faced.
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
(Copyright © 2022 Nga, Padungtod, Depner, Chuong, Duy, Anh and Dietze.)
Databáze: MEDLINE