Positive effects of viruses?

[Martin Weiss]

	The public perception is that germs are bad and to be 
avoided. Most-about 1% of microorganisms-are not pathogenic. Most 
examples of beneficial or benign microorganisms are bacteria. What 
about viruses? Are there examples of viruses having a positive 
effect? Benign might be difficult to document.

Cheers,

Martin

-- 
Martin Weiss, Ph.D.
Director of Science
New York Hall of Science
47-01 111 th Street
Corona, New York 11368
phone: 718 699 0005 x 356
facsimile:718 699 1341
mweiss at nyhallsci.org
http://www.nyhallsci.org
---