Diagnosis of C.<unk>  can be difficult due to vague clinical signs such as weight loss and general ill thrift. To confirm infection in animals with the external form, a bacteriological culture of the purulent material from an intact abscess should be taken. Biopsies may also be useful. If C.<unk>  is isolated, then this provides definitive diagnosis. Confirming diagnosis in animals infected with the internal form of the disease is more difficult, but ultrasonography and/or radiography may be useful.PCR has shown promising results for diagnosis and a double-antibody sandwich ELISA can be used in sheep and goats.
Corynebacterium pseudotuberculosis
Bacillus anthracis
Bacteroides caccae
Neisseria flavescens
Pseudomonas aeruginosa
Corynebacterium diphtheriae
Corynebacterium striatum
Fusobacterium necrophorum