Viral arthritis (poultry)

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For other viral arthritis, see Viral arthritis.
Right hock enlargement in viral arthritis in a parent-stock pullet

Viral arthritis is an infectious condition in chickens and to a lesser extent, turkeys, due to a reovirus.

The disease is egg-transmitted.[1]

The prominent symptom is a swelling of digital flexor and metatarsal extensor tendons. The hock joint itself is not so sharply affected, showing just a small amount of synovial exsudate when opened.[2]


  1. ^ Merck veterinary manual
  2. ^ Olson, N.O., Reovirus infections, in Diseases of poultry, ed. by M.S. Hofstad, Iowa State University Press, Ames, Iowa, USA ISBN 0-8138-0430-2, p. 560-566