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When you’re curled up on the couch, sniffling and shivering, with a pounding headache and aching body, it’s hard to imagine any such thing as a good virus. But according to scientists, many viruses have the potential to help, rather than hurt, humans. Over the years, this has been proven time and again. For example, in 1952 Martha Chase and Alfred Hershey used viruses to help establish that DNA, rather than protein, forms the basis of heredity.
And now, some MIT researchers have figured out a way …
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