The research is composed of three papers as follows: "Evaluation of the antigenic and immunogenic relationship between field samples and vaccine samples of infectious bursal disease virus by western blotting". "Infectious bursal disease: evaluation of the pathogenicity of vaccines marketed in Brazil in specific pathogen free birds" "Infectious bursal disease: evaluation of maternal immunity and protection conferred by vaccination on the first day of life , against challenge with a very virulent sample of the virus.
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