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Blue Tongue

- see ProMed Mail update for Nov 10 2004

"....There is a vaccine, but in the event of a UK outbreak it is probable the government would adopt a slaughter policy, with quarantine and movement restrictions "

ProMed moderator - "Killing affected or exposed sheep for the control of bluetongue is unlikely to be an effective, or scientifically justifiable policy. The disease spreads with infected, wind-bourne midges (notably _Culicoides imicola_, and according to some recent investigations, potentially also other species such as _C. obsoletus_ and _C. pulicaris_), while bovines serve as the reservoir or rather amplifier of the virus. Viraemic cattle generally do not show clinical symptoms, while the duration of their viraemia is generally longer than in sheep. The value of quarantine and movement restrictions in sheep is also questionable..."