Washington DC, May 31
Anthony Fauci, the director of the US National Institute of Allergy and Infectious Disease, said it was too early to declare victory over the coronavirus, despite a falling number of cases.
He said that the danger of emerging coronavirus variants that can diminish the effectiveness of existing vaccines would persist as long as there was "some degree of activity" around the world.
The Johns Hopkins University estimates that daily cases have more than halved since the start of this month. The Centers for Disease Control and Prevention says 59.1 per cent of US nationals aged 12 and over had been vaccinated at least once as of last Friday.
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