Ali Ahmed Malik

Passive Immunization Against Canine Distermper Virus In Dogs - 2005

Canine distemper is an important, highly contagious disease of dogs, caused by morbillivirus of family paramyxoviridae. The disease occurs worldwide in variety of hosts. In the present study, data relative to breed, sex and age susceptibility in clinically suspected cases of canine distemper was collected and analyzed. The disease is mostly seen in young nonvaccinated dogs of 4 to 6 months of age when maternal anti-CDV antibodies are decreased. Immune serum was raised in experimental dogs with commercially available measles live virus vaccine. The level of antibodies in the immune serum was determined by agar gel precipitation test (AGPT) and an ELISA based assay. Immune serum containing 128 AGPT units of anti-CDV antibodies was effective to control the disease in infected dogs after natural exposure to canine distemper virus. Finally the effective time for passive immunization against canine distemper was determined in experimental dogs. It was noted that immune serum offered protection to canine distemper immediately after infection, during the incubation period of the disease , 48 hours after infection and early phase of the disease(at the appearance of clinical signs). Passive immunization is not rewarding in the terminal phase of the disease (when infected dogs show nervous signs of the disease).Thus it is very useful for the prevention of disease in dogs kept with infected dogs in kennels and pet shops.

Department of Microbiology


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