Swine Disease Matrix
The Swine Health Information Center, in collaboration with the National Pork Board and the National Pork Producers Council, has developed a prioritized list of endemic and foreign swine pathogens – the Swine Disease Matrix. The complete Matrix includes an assessment of the diagnostic capabilities for selected pathogens based on a review of available literature.
The Swine Disease Matrix originated in an USDA literature review looking for a PEDv pathway into the US. The American Association of Swine Veterinarians reviewed and modified it. Then, in 2015, SHIC took over the responsibility of oversight. It is a living document; a SHIC working group regularly reviews it for content and priority. When a new or emerging disease is identified, there are also ad hoc considerations of content and priority.
The SHIC Monitoring and Analysis Working Group prioritized the list to help focus the SHIC on the U.S. pork industry’s highest risks. The Working Group scored the risk using three criteria, each measured on a 1 (least) to 10 (most) scale.
Criterion 1: The likelihood of foreign pathogens entering the U.S. and the likelihood of an endemic pathogen becoming recognized as the cause of an emerging disease or syndrome. Some of the listed pathogens are already endemic in the U.S. and others are foreign.
Criterion 2: The expected effects of disease from pathogens on production economics. The range of likely morbidity, mortality, and production losses from listed pathogens were taken into account.
Criterion 3: Probable effect on domestic and/or international markets from an outbreak due to listed pathogens. The U.S. pork industry exports a significant and growing percentage of its production. It is necessary for industry marketing to help domestic markets understand pork production.
The Swine Disease Matrix is prioritized based on the average 1-10 score of each pathogen in the three above criteria. The Working Group will continue to review and update the Matrix as new conditions and information emerge.
Updated: September 2018
Criteria for Average Risk Score
1) Likelihood of entry
2) Economic effects on production post entry
3) Effects on domestic and international markets
| Representative Virus Affecting Swine ||Production Impact||Domestic/Foreign Market Impacts||Likelihood of Introduction into the U.S. or Emergence of a Domestic Disease||Numerical Average|
|Foot and mouth disease virus||9||9||9||9.0|
|African swine fever virus||9||9||7||8.3|
|Classical swine fever virus||9||9||5||7.7|
|Pseudorabies virus ➜||8||8||5||7.0|
|Influenza A virus||4||8||8||6.7|
|Nipah virus ➜||8||9||2||6.3|
|Porcine epidemic diarrhea virus||6||4||7||5.7|
|PRRS virus (Chinese high path) ➜||6||5||5||5.3|
|Porcine teschovirus (Teschen/PTV1) ➜||5||5||5||5.0|
|Japanese enchephalitis virus ➜||5||5||4||4.7|
|Getah virus ➜||5||5||4||4.7|
|Transmissible gastroenteritis virus||5||4||4||4.3|
|Menangle virus ➜||4||4||4||4.0|
|Porcine sapelovirus ➜||5||1||6||4.0|
|Circovirus 3 ➜||4||2||6||3.7|
|Swine vesicular disease virus||4||3||2||3.0|
|Vesicular exanthema of swine virus ➜||3||4||2||3.0|
|Porcine rubulavirus ➜||5||2||2||3.0|
|Seneca Valley virus ➜||3||3||3||3.0|
|Porcine parainfluenza 1 virus ➜||3||2||3||2.7|
|Atypical swine pestivirus ➜||3||2||3||2.7|
|Influenza C virus ➜||2||2||2||2.0|
|Porcine respiratory coronavirus ➜||2||2||2||2.0|
|Hemagglutinating encephalomyelitis virus ➜||2||2||2||2.0|
|Encephalomyocarditis virus ➜||3||1||2||2.0|
|Hepatitis E virus ➜||1||3||1||1.7|
|Porcine adenovirus ➜||2||1||2||1.7|
|Porcine kobuvirus ➜||2||1||2||1.7|
|Sendai virus ➜||1||1||2||1.3|
|Porcine cytomegalovirus ➜||2||1||1||1.3|
|Porcine sapovirus ➜||1||1||1||1.0|
|Vesicular stomatitis virus ➜||1||1||1||1.0|
|Chikungunya virus ➜||1||1||1||1.0|
|Porcine bocavirus ➜||1||1||1||1.0|
|Porcine astrovirus ➜||1||1||1||1.0|
|Swine pox virus ➜||1||1||1||1.0|
|Porcine torovirus ➜||1||1||1||1.0|
|Swine papillomavirus ➜||1||1||1||1.0|