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10 Infectious bursal disease 35
A AVIAN Charles W Beard
5 other sections not shown
acute affected animals antibody antigen appear areas assay associated avian become birds blood bodies bovine calves cats cattle cause cell cultures chickens clinical signs collected common confirmed considered contain CONTROL AND MANAGEMENT coronavirus death detection develop diagnosis DIAGNOSIS AND INTERPRETATION diarrhea disease dogs early ease ELISA enteric equine evidence examination exposure fever field flocks Group herd horses host human identified immunity important indicated infection inoculation involved known laboratory LABORATORY DIAGNOSIS lesions levels live lung method months mortality nasal natural observed occur outbreak period persistent pigs possible PREVENTION procedures produce protection proteins rabies recent replication reported respiratory rotaviruses samples sensitive serologic serotypes serum severe sheep similar skin specific specimens spleen spread strains SUGGESTED swine tion tissue titers tract transmission turkeys types usually vaccine viral virus isolation viruses weeks