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Microbiology

'Bacteria-eating' viruses may spread some infectious diseases

Published in TB and Outbreaks Week, June 17th, 2003

A strep-infected child in a daycare center plays with a toy, puts it in her mouth and crawls away. Another child plays with the same toy and comes down with strep.

Until now, scientists thought that disease-causing bacteria left on the toy were the culprit in transferring the disease from the first child to the second. New research at the Rockefeller University shows that the culprit sometimes might not be the bacteria but a virus that infects and destroys the bacteria. Called a bacteriophage, this "bacteria-eating" virus causes disease by transferring toxins and other disease-causing genes between bacteria.

The findings, reported in the June 2003...

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