bluetongue-taudin osalta: AFRC Institute for Animal Health, Pirbright Laboratory, Pirbright, Woking Surrey GU24 0NF, United Kingdom; Mr D. J. Paton, Tel. ###>for bluetongue: AFRC Institute for Animal Health, Pirbright Laboratory, Pirbright, Woking, Surrey GU24 ONF, United Kingdom; Mr D.J.