Volume 25, Number 5—May 2019
Research
Infectious Dose of African Swine Fever Virus When Consumed Naturally in Liquid or Feed
Megan C. Niederwerder
, Ana M.M. Stoian, Raymond R.R. Rowland, Steve S. Dritz, Vlad Petrovan, Laura A. Constance, Jordan T. Gebhardt, Matthew Olcha, Cassandra K. Jones, Jason C. Woodworth, Ying Fang, Jia Liang, and Trevor J. Hefley
, Ana M.M. Stoian, Raymond R.R. Rowland, Steve S. Dritz, Vlad Petrovan, Laura A. Constance, Jordan T. Gebhardt, Matthew Olcha, Cassandra K. Jones, Jason C. Woodworth, Ying Fang, Jia Liang, and Trevor J. Hefley
Table 2
Summary of results for pigs orally exposed to ASFV in liquid or feed to determine the infectious dose of ASFV when consumed naturally*
| Dose ASFV, TCID50 |
Liquid media |
Plant-based feed |
|||||
| No. tested |
No. positive |
% Positive |
No. tested |
No. positive |
% Positive |
||
| 100 | 8 | 3 | 37.5 | – | – | – | |
| 101 | 9 | 4 | 44.4 | – | – | – | |
| 102 | 8 | 6 | 75 | – | – | – | |
| 103 | 6 | 5 | 83.3 | 5 | 0 | 0 | |
| 104 | 3 | 3 | 100 | 5 | 2 | 40 | |
| 105 | – | – | – | 9 | 4 | 44.4 | |
| 106 | – | – | – | 8 | 2 | 25 | |
| 107 | – | – | – | 5 | 2 | 40 | |
| 108 | – | – | – | 2 | 1 | 50 | |
*ASFV, African swine fever virus; TCID50, 50% tissue culture infectious dose; –, no pigs tested.
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Page updated: April 18, 2019
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