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Porcine Reproductive and Respiratory Syndrome - (PRRS)

See chapter 6 for further information.

(476) Occasionally skin lesions are seen in PRRS that are characterised by small discrete vesicles anywhere on the body but particularly around the nose and the shoulders at points of pressure. The vesicles rupture, become infected and dark coloured and ultimately heal over a three week period.

It is not uncommon where PRRS virus is active in growing pigs to see a generalised form in 1-2% of pigs. (Fig.10-21). The lesions look similar to localised greasy pig disease but close examination will show tiny vesicles covered with black scabs 1-10mm in diameter.

SKIN LESIONS ASSOCIATED WITH PRRS
Note the tiny black lesions and the larger ones beneath the hair.



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