Swine Bacterial Disease Matrix

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.

Updated: October 2018

Total score = Potential Public Health Impact + Need for more efficacious intervention tools + Diagnostic Tools + Impact on pig health, welfare, production sustainability + Market impact

Representative Bacteria Affecting Swine Average Total Score
Streptococcus suis 28.3
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 7.8
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