Vaccines have transformed the world, saving hundreds of millions of lives. They are also by far our best hope for stopping the Covid-19 pandemic. Our other options to stop the disease are to stay apart, which hurts our economy and society, or to build a “collective immunity” through natural infection, …
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Text size Mladen Antonov / AFP / Getty Images As the new coronavirus pandemic continues in the U.S., people yearn for a victory after Washington’s spectacular failures to secure adequate supplies of test kits and personal protective equipment. Success depends on whether any of the candidates for the fast-track Covid-19 …
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An emerging strain of flu in China is drawing scientists’ attention just as the world is battling the worst pandemic since the 1918 Spanish flu. Chinese researchers identified a new strain of influenza that is infecting pigs in China and that has characteristics of the so-called swine flu, or H1N1, …
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