More than 100 of such viruses are now known to cause human diseases.

Rats are allowed but have been known to cause trouble.

Ways to avoid or control things known to cause cancer.

Some medicines are known to cause hearing loss as a potential side effect.

Answer: Iron is not known to cause any problems with blood sugar.

In some cases it has been known to cause cancer within only a few years of use.

Of the 300 or so viruses discovered in the last 15 years, about 10 are known to cause human disease.

This is known to cause serious injuries, in some cases death.

It is known to cause disease in both animals and man.

The effect of high noise levels on small children has been known to cause physical health damages as well.