EFFICACY OF 3 ORAL RABIES VACCINE-BAITS IN THE RED FOX - A COMPARISON

The three commercial vaccine-baits currently available in western Euro pe were fed to caged red foxes. The vaccines were: SAD(B19), Bundesfor schunganstalt fur Viruskrankheiten der Tiere-Tubingen, Germany: a live attenuated rabies strain; SAG(1) VIRBAC, France: low pathogenicity mu tant of the SAD strain and ''Raboral'', Rhone-Merieux, France: a vacci nia rabies glycoprotein recombinant (V-RG). Protection rates conferred by the vaccine-baits were respectively 7 of 15 (SADB 19), 5 of 9 (SAG 1) and 6 of 12 (V-RG) when the vaccinated foxes were challenged intram uscularly with 10(4.7) Mice Intra-Cerebral Lethal Dosis 50% (MICLD50) of rabies virus which killed all of 6 unvaccinated control foxes.