Scientists are reporting troubling signs that some recent mutations of the virus that causes COVID-19 may modestly curb the effectiveness of two current vaccines, although they stress that the shots ...
A coupled epidemiological and evolutionary model of influenza shows that vaccination can accelerate viral escape and even ...
A new study provides early evidence that a Covid-19 vaccine might be effective against two new coronavirus strains first identified in South Africa and the UK, despite a concerning mutation. The two ...
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