The three new cases were in southern provinces, where the disease has infected thousands of birds.

Well, yes-his worm wasn't supposed to infect thousands of computers overnight.

That was more than five years after the disease had been identified, and it had infected thousands of Americans.

Despite high vaccination rates, recent outbreaks have infected thousands of people in the U.S.

Since 1997, avian flu strains seem to have infected thousands of birds in 11 countries.

They also do not produce results for up to 36 hours - long after a biological attack would potentially infect thousands of people.

An outbreak of dengue fever kills 91 people in Indonesia and infects thousands more.

If bird flu ever gained the ability to spread easily among humans, that patient would have infected thousands before diagnosis.

The harvested plasma was then shipped around the world, where it has been reported to have infected thousands of haemophilia patients.

It has since infected tens of thousands of young victims, many of them in New York.