TY - JOUR
T1 - Planning “Plan B”
T2 - The Case of Moving Cattle From an Infected Feedlot Premises During a Hypothetical Widespread FMD Outbreak in the United States
AU - Walz, Emily
AU - Evanson, Jessica
AU - Sampedro, Fernando
AU - VanderWaal, Kimberly
AU - Goldsmith, Timothy
N1 - Funding Information:
This project was developed and funded through a sub-award 000000042653 with West Texas A&M University through primary award # 12-9100-1366-CA from USDA-APHIS.
Publisher Copyright:
© Copyright © 2020 Walz, Evanson, Sampedro, VanderWaal and Goldsmith.
PY - 2020/1/9
Y1 - 2020/1/9
N2 - In the event of a foot-and-mouth disease (FMD) outbreak in the United States, “stamping out” FMD infected premises has been proposed as the method of choice for the control of outbreaks. However, if a widespread, catastrophic FMD outbreak in the U.S. were to occur, alternative solutions to stamping out may be required, particularly for large feedlots with over 10,000 cattle. Such strategies include moving cattle from infected or not known to be infected operations to slaughter facilities either with or without prior implementation of vaccination. To understand the risk of these strategies, it is important to estimate levels of herd viremia. Multiple factors must be considered when determining risk and feasibility of moving cattle from a feedlot to a slaughter facility during an FMD outbreak. In addition to modeling within-herd disease spread to estimate prevalence of viremic animals, we explore potential pathways for viral spread associated with the movement of asymptomatic beef cattle (either pre-clinical or recovered) from an infected feedlot premises to offsite harvest facilities. This analysis was proactive in nature, however evaluation of the likelihood of disease spread relative to disease (infection) phase, time of movement, and vaccination status are all factors which should be considered in managing and containing a large-scale FMD outbreak in the United States.
AB - In the event of a foot-and-mouth disease (FMD) outbreak in the United States, “stamping out” FMD infected premises has been proposed as the method of choice for the control of outbreaks. However, if a widespread, catastrophic FMD outbreak in the U.S. were to occur, alternative solutions to stamping out may be required, particularly for large feedlots with over 10,000 cattle. Such strategies include moving cattle from infected or not known to be infected operations to slaughter facilities either with or without prior implementation of vaccination. To understand the risk of these strategies, it is important to estimate levels of herd viremia. Multiple factors must be considered when determining risk and feasibility of moving cattle from a feedlot to a slaughter facility during an FMD outbreak. In addition to modeling within-herd disease spread to estimate prevalence of viremic animals, we explore potential pathways for viral spread associated with the movement of asymptomatic beef cattle (either pre-clinical or recovered) from an infected feedlot premises to offsite harvest facilities. This analysis was proactive in nature, however evaluation of the likelihood of disease spread relative to disease (infection) phase, time of movement, and vaccination status are all factors which should be considered in managing and containing a large-scale FMD outbreak in the United States.
KW - FMDV
KW - carcass
KW - cattle
KW - feedlot
KW - foot and mouth disease
UR - http://www.scopus.com/inward/record.url?scp=85078498845&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85078498845&partnerID=8YFLogxK
U2 - 10.3389/fvets.2019.00484
DO - 10.3389/fvets.2019.00484
M3 - Article
C2 - 31998764
AN - SCOPUS:85078498845
SN - 2297-1769
VL - 6
JO - Frontiers in Veterinary Science
JF - Frontiers in Veterinary Science
M1 - 484
ER -