The World Health Organization greenlighted emergency use of AstraZeneca and Oxford’s covid-19 vaccine this month, following in the steps of the United Kingdom, the European Union and others, who are already injecting it as quickly as possible into the masses.

But the United States is still waiting.

As covid deaths mount daily, critics say the Food and Drug Administration is moving too slowly. Meanwhile, the novel coronavirus is evolving, with new variants stalking populations the world over.

“We are truly in a race and this race is real — the more we get people vaccinated, the more it will tamp down the virus that is mutating,” said Dr. Monica Gandhi, an infectious diseases specialist and professor of medicine at the University of California-San

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