Assertion list
virus (aspect of vaccine ) → HasA

Results from Ascent++: 6
virusHasA gene 0.51
virusHasA one or more gene segments 0.41
virusHasA antigenic activity 0.37
virusHasA mutation 0.32
virusHasA different level of effectiveness 0.28
virusHasA rna 0.25