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.

The traditional method of creating flu vaccines involves growing the virus in eggs - but this can be a problem when there are virulent avian flu strains which can kill the eggs used during manufacturing.

From BBC • Apr. 21, 2026

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

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

In all, both Escobar and Ortega have expressed regret, have promised to prove their growth through their actions, and have also asked virulent fans to stop harassing them and their families.

From Los Angeles Times • Jul. 10, 2025

The sample didn’t just test positive; it showed that Henrietta had been infected with multiple copies of HPV-18, which turned out to be one of the most virulent strains of the virus.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot