Fighting fire blight and detecting Salmonella

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Apple branch with “scorched” leaves after a severe fire-blight infection caused by the bacterium Erwinia amylovora. (Photo: Peggy Greb via wikimedia commons)

ETH researchers have created an effective weapon against the plant disease fire blight and a new method for detection of Salmonella. Both are based on particular viruses that attack only one species of bacteria.ETH News