By contrast, yellow fever, which is considered a highly lethal virus, kills only about one in twenty patients once they reach hospital.

She was eager to prove herself and eager to continue working with lethal viruses.

Was that lethal virus so many experts spoke of last year loose again in the culture?

It was a lethal virus in the global body politic.

K14 is the most lethal virus developed, and if the vial were opened up to ten million people could die.

A small matter such as lethal viruses had not kept the humans away long.

There is only one final objective: this lethal virus must no longer find fertile ground.

A single lethal virus affecting either breed could be disastrous.

The babies acquire the lethal virus while still in the womb.

Ebola is one of the most lethal viruses known to medical science.