In addition, we need to know a lot about the virus itself.

We still do not know a great deal about the specific virus.

First reports about the virus came on June 11, 2007.

Since then multiple studies have come out about the virus.

His books about viruses were first published in 1994 and 2001.

And, knowing what we know now about the virus, he's probably right.

The stuff about the virus, that had been an accident.

What is different about the virus we call junk food?

If you're concerned about viruses, try singing it to your computer.

The radio warmed finally and I learned about the virus.