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St. Croix Sheep

Credit: USDA.gov
article: Anthrax Disease, History, Vaccines Current Views 		Other images from this article
St. Croix Sheep Hereford Cattle, Montana, USA Anthrax Lesion on the Skin Bacillus anthracis Anthrax Agent Anthrax Bacilli Gram Stain Purple
St. Croix Sheep, USDA.gov