virulent

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.

But time travel is an imperfect science, and the technician overseeing the process is delirious from a virulent new strain of flu, so Kivrin is accidentally dropped into 1348, the year of the Black Death.

From The Wall Street Journal • Feb. 17, 2026

It said there had been outbreaks on wards and the dominant strain was "particularly virulent".

From BBC • Dec. 9, 2025

She explained that the vaccine strain appears smooth and stable at the surface, while the virulent strain has a noticeably uneven, textured exterior.

From Science Daily • Nov. 27, 2025

Viruses can mutate to escape from antibodies, but the mRNA vaccines are not causing the emergence of more virulent strains, likely for at least two reasons.

From Salon • Sep. 5, 2025

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