Changes

==Description==

==Description==

An infectious disease caused by the gram-negative coccobacilli[[Actinobacillus lignieresii]]. Characterised by inflammation of the soft tissues of the head especially the [[Oral Cavity - Tongue - Anatomy & Physiology|tongue]] and [[Lymph Nodes - Anatomy & Physiology|pharangeal lymph nodes]] of cattle and sheep. The Causal agent is widespread in the environment and gets into the tongue via small abrasions. It can be a progressive disease - low virulence but high persistence so the animal may stop eating and eventually die if not treated.  

An infectious disease caused by the gram-negative coccobacilli[[Actinobacillus lignieresii]]. Characterised by inflammation of the soft tissues of the head especially the [[Oral Cavity - Tongue - Anatomy & Physiology|tongue]] and [[Lymph Nodes - Anatomy & Physiology|pharangeal lymph nodes]] of cattle and sheep. The Causal agent is widespread in the environment and part of the normal flora of the GI mucosa. It gains acess to the tongue via small abrasions. It can be a progressive disease - low virulence but high persistence so the animal may stop eating and eventually die if not treated.  

==Diagnosis==

==Diagnosis==

A diagnosis can be made on history and clinical signs.  

A diagnosis can often be made on history and clinical signs.

Additionally, Pus from the abscesses may contain microcolonies interspersed with clublike pieces of calciuk phosphate which will give the appearance of sulphur granules.  

==Clinical Signs==

==Clinical Signs==