Definition of "virulence" []

• The state of being virulent (noun)
• A measure of how virulent a thing is (noun)

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• "Throughout the manuscript, the term virulence factor will be used in accordance with the definition proposed by Wood et al; "A component of a pathogen that when deleted specifically impairs virulence but not viability""
• "It is very noteworthy here that one must certainly not conclude that the loss of disease-causing activity for cattle necessarily means a decrease in virulence for other animals."
• "What wonder, that this year, when as we are told, its virulence is unexampled in"