Sentence examples for viruses are in a from inspiring English sources

In wild aquatic birds, low pathogenicity avian influenza viruses are in a state of evolutionary equilibrium, and infected hosts usually show no signs of disease.

When multiple jellyrolls from RNA viruses are in a single polypeptide chain like the large subunit of cowpea mosaic virus or all 3 subunits of tobacco ring spot virus they clearly appear as "beads on string", while the double jelly roll structure integrates the two domains into a contiguous protein.

Therefore, avian H9N2 viruses are in an ideal position to undergo further adaptation for more efficient transmission among mammals and humans.

Before 1991, the Uukuniemi-like viruses were in a separate genus (Uukuvirus), but the similar molecular biological characteristics along with some weak serological cross reactivity shared with viruses in the Phlebovirus genus resulted in their reclassification [ 4].

Of these, experts agree, the smallpox virus is in a class by itself.

The Westchester case was notable, state health officials said, because the virus was in a type of mosquito that feeds during the day and night, Aedes japonicus.

Had the virus been in a deep freeze?

But the virus is in an immature form and is unable to cause infection unless other parts of the virus are present, Dr. Stöhr said.

A better-known myth stems from a 1999 book called "The River," which argued that the virus was in an experimental polio vaccine said to have been grown in chimpanzee cells.

"The starting point of the virus was in an area where Guinea, Sierra Leone, and Liberia come together," he said.

Anti-hepatitis C virus antibody was positive but alanine transaminase and aspartate transaminase levels were normal, which suggested that hepatitis C virus was in an inactive state.