Enhancing passive surveillance for African swine fever detection on U.S. swine farms

Rachel Schambow, Yoder Colin, Wright Dave, Daniella Schettino, Andres M. Perez

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


As the threat of African swine fever (ASF) introduction into new areas continues, animal health officials and epidemiologists need novel tools for early detection and surveillance. Passive surveillance from swine producers and veterinarians is critical to identify cases, especially the first introduction. Enhanced passive surveillance (EPS) protocols are needed that maximize temporal sensitivity for early ASF detection yet are easily implemented. Regularly collected production and disease data on swine farms may pose an opportunity for developing EPS protocols. To better understand the types of data regularly collected on swine farms and on-farm disease surveillance, a questionnaire was distributed in summer 2022 across multiple channels to MN swine producers. Thirty responses were received that indicated the majority of farms collect various types of disease information and conduct routine diagnostic testing for endemic swine diseases. Following this, a focus group discussion was held at the 2022 Leman Swine Conference where private and public stakeholders discussed the potential value of EPS, opportunities for collaboration, and challenges. The reported value of EPS varied by stakeholder group, but generally participants felt that for swine producers and packers, EPS would help identify abnormal disease occurrences. Many opportunities were identified for collaboration with ongoing industry initiatives and swine management software. Challenges included maintaining motivation for participation in ASF-free areas, labor, data sharing issues, and the cost of diagnostic testing. These highlight important issues to address, and future collaborations can help in the development of practical, fit-for-purpose, and valuable EPS protocols for ASF detection in the swine industry.

Original languageEnglish (US)
Article number1080150
JournalFrontiers in Veterinary Science
StatePublished - Dec 2 2022

Bibliographical note

Funding Information:
This work was funded by a cooperative agreement with the United States Department of Agriculture Center for Epidemiology and Animal Health. The findings and conclusions in this publication are those of the author(s) and should not be construed to represent any official USDA or U.S. Government determination or policy.

Publisher Copyright:
Copyright © 2022 Schambow, Colin, Dave, Schettino and Perez.


  • African swine fever
  • disease surveillance
  • enhanced passive surveillance
  • foreign animal disease
  • participatory
  • pig

PubMed: MeSH publication types

  • Journal Article


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