VVND

AcronymDefinition
VVNDViscerotropic Velogenic Newcastle Disease
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References in periodicals archive ?
There are viscerotropic velogenic (VVND) and neurotropic velogenic types (NVND).
Clinical signs are most severe with VVND strains producing acute systemic illness with extensive necrosis of lymphoid areas (mainly macrophages) in the spleen and intestine.