virulent strain in a sentence

Examples

1. "We have a really virulent strain, " he said.
2. Their work included subculturing virulent strains of the tubercle bacillus and testing different culture media.
3. However, the more virulent strain of HIV-2 could be practical for use in animal models.
4. Additionally, there is a risk that the weak strain could mutate into a more virulent strain.
5. Molds and bacteria live on the station, and one particularly virulent strain has corroded Mir's windows.
6. A virulent strain of flu hit in 1957-1958, when the Asian flu killed 70, 000 Americans.
7. Scarier still, no one knows whether virulent strains might be lurking in the next mail delivery.
8. A virulent strain of West Nile virus was isolated from the brains of eleven dead juveniles.
9. Far from having escaped the Asian flu, China has already been smitten by a virulent strain.
10. The most virulent strain, like the one in Kikwit, kills about 80 percent of its victims.