Dairy cattle often suffer from teat lesions and subsequent mastitis; a severe drop in milk production commonly occurs. Some affected dairy cattle can appear to be normal with no clearly visible signs of illness but may only eat about half of their normal feed intake. If there are no complications such as secondary infection, affected animals typically recover in about two weeks.

In horses, vesicular lesions generally occur on the upper surface of the tongue, the lips, around nostrils, corners of the mouth, and gums. Lesions in horses may also be expressed as crusting scabs on the muzzle, lips, or ventral abdomen. Affected pigs usually first show signs of lameness caused by foot lesions.

For current information on vesicular stomatitis outbreaks or summaries of the most recent past outbreaks, visit the APHIS Web site at www.aphis.usda.gov/vs/nahss/equine/vsv/.