Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

His alternative: instead of killing a virulent virus, use a living virus that is nonvirulent to begin with.

From Time Magazine Archive

If the guilty virus strains could be isolated and injected in a nonvirulent form into the body, natural immunizing forces could go to work, produce antibodies, protect against the disease.

From Time Magazine Archive

But when he mixed the dead material from the virulent strain with live bacteria of the nonvirulent strain, the mice died rapidly.

From "The Gene" by Siddhartha Mukherjee

He separated the crude bacterial debris from the virulent smooth strain, mixed it with the live bacteria of the nonvirulent rough strain, and injected the mix into mice.

From "The Gene" by Siddhartha Mukherjee