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      The safety and efficacy of the oral rabies vaccine SAG2 in Indian stray dogs.

      Vaccine

      Administration, Oral, Animals, Antibodies, Viral, blood, Dogs, Rabies Vaccines, administration & dosage, adverse effects, immunology, Safety, Saliva, virology, Vaccination, Vaccines, Attenuated

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          Abstract

          India is one of the countries with the highest prevalence of human rabies throughout the world. Dogs are primarily responsible for rabies transmission. Among them, stray dogs play a major role in that country. Parenteral vaccination programmes are insufficient to eliminate rabies partly due to difficulties in establishing satisfactory immunisation coverage in the dog population in view of the high proportion of stray dogs. Oral vaccination may be a useful adjunct to parenteral vaccination by increasing dog vaccination coverage. Safety, immunogenicity and efficacy of Rabidog SAG2 bait were evaluated in Indian stray dogs in captivity. Safety of SAG2 was demonstrated by the absence of adverse clinical sign, salivary excretion and absence of replication of the vaccine strain in brain and salivary glands of 21 vaccinated dogs, even when immunodepressed. Efficacy was shown 109 days post-vaccination after challenge with a highly virulent street rabies virus which killed all five controls whereas all nine vaccinated dogs survived, despite the fact that only five out of nine had seroconverted before challenge.

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          Journal
          17224221
          10.1016/j.vaccine.2006.12.054

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