The infection is most commonly caused by abrasions on different soft tissues through which the bacteria, Actinobacillus lignieresii, enters. These soft tissues include subcutaneous tissues, the tongue, lymph nodes, lungs, and various tissues in the gastrointestinal tract. The injury results in different forms and locations of the disease depending on the location of the tissue. The commensal bacteria is also commonly found in the oral cavity, gastrointestinal tract, and reproductive tract, sometimes resulting in disease. There are generally one or two cases of<unk>  per herd found in adult cows, foals or adult horses, and other similar animals.
Actinobacillosis
Actinomycetoma
Actinomycosis
Treponema
Cryptococcus
Dermatomycosis
Blastomycosis
Botryomycosis