Could a vaccine wipe out COVID-19 or will protection be short-term? That's the 'million dollar question'

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Would a vaccine for the new coronavirus wind up offering long-lasting immunity? Or will the virus prove to be a shape-shifter, mutating quickly enough that people need annual vaccines like those for seasonal strains of influenza? Researchers are probing for answers in the rush to develop a vaccine for COVID-19.

from CBC | Health News https://ift.tt/2Afi6tK