They're ba-ack! But in a new disease-fighting role. Viruses that infect and kill bacteria - used to treat infections in the pre-antibiotic era a century ago and in the former Soviet Union today - may have a new role in preventing formation of the sticky "biofilms" of bacteria responsible for infections on implanted medical devices. That's the topic of a report in the ACS journal Biomacromolecules. Marek Urban and colleagues explain that bacteriophages (literally, "bacteria eaters") were first used to treat bacterial infections in the 19th century...
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