US health officials sparked criticism and confusion after posting guidelines on coronavirus testing from the White House task force that run counter to what scientists say is necessary to control the pandemic, even as the number of global Covid-19 cases passed 24 million, with more than 5.8 million in the US alone.The new guidance says it is not necessary for people who do not feel sick but have been in close contact with infected people to get tested. It was posted earlier this week on the…
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