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'Biosensors' on four feet detect animals infected with bird flu
Blood hounds, cadaver dogs, and other canines who serve humanity may soon have a new partner -- disease detector dogs -- thanks to an unusual experiment in which scientists trained mice to identify feces of ducks infected with bird influenza. The proof-of-concept study may pave the way for development of "biosensors on four feet" that warn of infection with influenza and other diseases.