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Volume 25, Number 12—December 2019
Dispatch

Half-Life of African Swine Fever Virus in Shipped Feed

Ana M.M. Stoian, Jeff Zimmerman, Ju Ji, Trevor J. Hefley, Scott Dee, Diego G. Diel, Raymond R.R. Rowland, and Megan C. NiederwerderComments to Author 
Author affiliations: Kansas State University, Manhattan, Kansas, USA (A.M.M. Stoian, T.J. Hefley, R.R.R. Rowland, M.C. Niederwerder); Iowa State University, Ames, Iowa, USA (J. Zimmerman, J. Ji); Pipestone Applied Research, Pipestone, Minnesota, USA (S. Dee); Cornell University, Ithaca, New York, USA (D.G. Diel)

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Figure

Decay of African swine fever virus (ASFV) Georgia 2007 in feed ingredients exposed to temperature and humidity conditions simulating a 30-day transatlantic shipment. A) Temperature and humidity conditions, which fluctuated every 6 hours during the course of the 30-day environmental model. Environmental conditions were based on the availability of historical data logged from April 5, 2011, through May 4, 2011 (5,11) to model transatlantic shipment from Warsaw, Poland, to Des Moines, Iowa, USA. B)

Figure. Decay of African swine fever virus (ASFV) Georgia 2007 in feed ingredients exposed to temperature and humidity conditions simulating a 30-day trans-Atlantic shipment. A) Temperature and humidity conditions, which fluctuated every 6 hours during the course of the 30-day environmental model. Environmental conditions were based on the availability of historical data logged from April 5, 2011, through May 4, 2011 (5,11) to model trans-Atlantic shipment from Warsaw, Poland, to Des Moines, Iowa, USA. B) Mean TCID50 of ASFV Georgia 2007 quantified on porcine alveolar macrophages at 1, 8, 17, and 30 days after contamination for different types of feed and controls. Feed ingredients were inoculated with 105 TCID50 ASFV based on previous half-life calculations (5,10) and the infectious dose in feed (6). TCID50, 50% tissue culture infective dose.

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Page updated: November 18, 2019
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The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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