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Field trial of a Caryospora species vaccine for controlling clinical coccidiosis in falcons
  1. N. A. Forbes, BVetMed, DipECAMS, FRCVS1 and
  2. M. T. Fox, BVetMed, PhD, ILTM, MRCVS2
  1. 1 Avian and Exotic Animal Department, Clockhouse Veterinary Hospital, Wallbridge, Stroud, Gloucestershire GL5 3TD
  2. 2 Department of Pathology and Infectious Diseases, Royal Veterinary College, Royal College Street, London NW1 0TU
  1. Great Western Referrals, Unit 10, Berkshire House, County Park Estate, Shrivenham Road, Swindon,Wiltshire SN1 2NR


A Caryospora species vaccine was prepared and used in an attempt to prevent infection and associated morbidity in falcons. A blind field trial was conducted, involving a vaccinated group of 20 birds and two control groups of seven and four birds, which were subsequently challenged with a live mixed-species vaccine. There was a statistically significant reduction in morbidity and shedding of oocysts in the vaccinated group compared with the control groups.

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