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Efficacy of a commercial Newcastle vaccine against velogenic viscerotropic Newcastle disease virus. |
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| Authors: | H N Benson D R Wenger P D Beard |
| Abstract: | Effects of parental immunity and method of vaccination were studied in broiler chickens vaccinated with a commercial LaSota vaccine and challenged with the Fontana strain of velogenic viscerotropic Newcastle disease (VVND). Immunity was satisfactory from all methods of vaccination used. |
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