Swine Bacterial Disease Matrix

February 2021

The pork industry has spent millions to better understand viruses, however, it is often bacteria that kills the pig. In addition, current biosecurity practices are primarily devised to keep viruses out and potentially fail to address the endemic nature of bacteria in a herd. To go along with the Swine Health Information Center’s (SHIC) Swine Disease Matrix, a prioritized list of endemic and foreign swine viruses, a Bacterial Swine Disease Matrix has been developed. This new tool will guide a focused look at the US pork industry’s highest bacterial risks, while SHIC continues to remain focused on emerging viral pathogens. Both are important tools and part of SHIC’s mission to protect and enhance the health of the United States swine herd.

Matrix Scoring Criteria

Potential public health impact: (hazard x frequency)

Need for more efficacious intervention tools

Diagnostic tools: rank based on need for better tools

Impact on pig health, welfare, production sustainability

Market impact

Representative Bacteria Affecting Swine Average Total Score
Streptococcus suis
28.25
Strep equi spp zooepidemicus
22.3
Salmonella enterica
22.2
Mycoplasma hyopneumoniae
21.8
Escherichia coli
21.7
Haemophilus parasuis
21.1
Mycoplasma hyorhinis
19.1
Brachyspira hyodysenteriae
17.4
Actinobacillus pleuropneumoniae
16.1
Actinobacillus suis
15.9
Brucella suis
15.7
Mycoplasma hyosynoviae
15.2
Brachyspira hampsonii
15.0
Staphylococcus aureus including LA-MRSA
14.8
Pasteurella multocida
14.5
Campylobacter coli
14.1
Leptospira spp.
13.8
Campylobacter jejuni
13.6
Erysipelothrix rhysiopathiae
13.6
Clostridium difficile
13.5
Enterococcus spp. including VRE
13.5
Bordetella bronchiseptica
13.1
Brachyspira pilosicoli
13.0
Lawsonia intracellularis
13.0
Clostridium perfringens
12.6
Mycoplasma suis
12.2
Bacillus anthracis
12.2
Listeria monocytogenes
10.8
Trueperella abortisuis
10.5
Yersinia enterocolitica
10.2
Staphylococcus hyicus
10.0
Mycobacterium spp.
9.6
Burkholderia pseudomallei
9.4
Yersinia pseudotuberculosis
8.8
Coxiella burnetii
8.0
Actinobaculum suis
8.8
Chlamydophila psittaci
7.6
Chlamydophila pecorum
7.2
Clostridium botulinum
7.0
Streptococcus porcinus
7.0
Clostridium chauvoei
6.0
Clostridium novyi
6.0
Treponema pedis
6.0
Clostridium septicum
5.6
Staphylococcus dysgalactiae subsp. equisimilis
5.5
Rhodococcus equi
5.3