Corynebacterium pseudotuberculosis is a highly contagious bacterial infection caused by Corynebacterium pseudotuberculosis. It is a common cause of lymphadenitis in small ruminants.
Other causes of lymph node enlargement in small ruminants include other bacterial infections, CAE, and lymphosarcoma. In goats, the disease melioidosis or pseudoglanders, caused by Burkholderia pseudomallei, may have a similar presentation or, as described in the present report, A. hyovaginalis may be involved in producing similar lesions.