Actinobacillus lignieresii infection in two horses.

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Title:	Actinobacillus lignieresii infection in two horses.
Author:	Carmalt, J L : Baptiste, K E : Chirino Trejo, J M
Citation:	J-Am-Vet-Med-Assoc. 1999 Sep 15; 215(6): 826-8, 796
Abstract:	A 10-year-old pregnant Norwegian Fjord horse was examined for gross swelling of the muzzle of 2 years' duration. Examination of biopsy specimens revealed diffuse dermal fibrosis, micropustule formation, and vascular thrombosis; large numbers of Actinobacillus lignieresii were isolated in pure culture. Prolonged treatment with i.v. administration of sodium iodide and oral administration of trimethoprim-sulfamethoxazole caused regression of the swelling and did not induce abortion. A 5-month-old American Paint filly was examined for swelling in the udder region. Bacteriologic culture of purulent material obtained from the left teat revealed A lignieresii. Treatment with oral administration of rifampin and trimethoprim-sulfamethoxazole resulted in complete resolution of clinical signs. To the authors' knowledge, these findings represent the first report of mastitis and chronic nasal cellulitis caused by A lignieresii infection in horses.
Review References:	None
Notes:	None
Language:	English
Publication Type:	Journal-Article
Keywords:	Actinobacillosis microbiology : Actinobacillus isolation and purification : Horse Diseases microbiology : Mammae pathology : Nose Diseases veterinary : Pregnancy Complications, Infectious veterinary
URL:	http://www.avma.org/default.htm