Signs of Foot and Mouth in Cattle:
- Slobbering and smacking lips
- Tender and sore feet
- Reduced milk yield
- Sores and blisters on feet
- Raised temperature
Tongue of steer with 1-day-old vesicle which ruptured when the tongue was drawn from the mouth
Steer with 2-day-old ruptured vesicle along upper gum and several 1-day-old unruptured vesicles on the tongue
Two-day-old ruptured vesicles on the tongue, lower gum and lower lip of a steer. Note sharp edges to ulcerated areas.
A further example of 2-day-old lesions in the mouth of a steer. Again note sharp margins of lesions and red raw appearance of exposed dermis
Steer’s tongue with a 10-day-old lesion characterised by loss of papillae, indentation at the site of the lesion and fibrous tissue proliferation
Foot of a steer with a 2-day-old unruptured vesicle in the inter-digital space
The heel bulbs of a steer’s foot with unruptured 2-day-old vesicles
An 11-day-old foot lesion on the heel bulb of a steer. Note healing and under-running of horn tissue
Signs of Foot and Mouth in Sheep
- Sudden, severe lameness
- Lies down frequently and is very unwilling to rise
- When made to rise stands in a half-crouching position, with hind legs brought well forward, reluctant to move
- Blisters may be found on the hoof where the horn joins the skin which may extend all round the coronet and in the cleft of the foot. When they burst the horn is separated from the tissues underneath, and hair round the hoof may appear damp the dental pad and sometimes the tongue
Sheeps mouth with two small unruptured vesicles at one day of age. Note blanched, glistening appearance
Two-day-old lesion on the dental pad and upper gum of a sheep. The margins of the lesion are sharp
Further examples of two-day-old lesions, in this case on a sheep’s tongue
A two-day-old lesion on dental pad of a sheep.
Two-day-old lesions in the inter-digital space and along the coronary bands of a sheep’s foot. Note blanching and swelling
Sheep’s foot with two-day-old coronary band lesion. Note the necessity to reflect the hair in order to view the lesion
Focal interdigital ulceration in a typical case of CODD with detachment of hoof horn (Credit: Ian Davies VLA Shrewsbury
Signs of Foot and Mouth in Pigs
- Sudden lameness
- Prefers to lie down
- When made to move squeals loudly and hobbles painfully
- Blisters form on the upper edge of the hoof, where the skin and horn meet, and on the heels and in the cleft
- May extend right round the top of the hoof with the result that the horn becomes separated
- Blisters may develop on the snout or on the tongue
One -day-old unruptured vesicles on the snout of a pig
One-day-old vesication of a pig’s snout, gum and lips
Same animal 1 day later, i.e. 2-day-old vesicles. Note necrosis of ephithelium at lesion sites.
Pig’s feet with 9-day-old lesions
It is important to remember that Swine Vesicular Disease has identical symptoms to foot-and-mouth disease. Therefore anyone who sees blisters in pigs must report the sighting as suspected foot-and-mouth disease until laboratory tests prove otherwise.
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