Immune response of chickens to a tissue culture adapted "Komarov" vaccine strain of Newcastle disease virus (TCAVNDY). 1.- Serological, histopathological and virus distribution studies on vaccinated birds [Egypt]

chickens cultivo de tejidos egipto egypt histologie histology immune response immunological techniques newcastle disease virus pollo poulet technique immunologique tissue culture vaccin vaccines vacuna virose viroses virosis virus de la enfermedad de newcastle virus maladie de newcastle