A sudden change in federal guidelines on coronavirus testing came as a result of pressure from the upper ranks of the Trump administration, a federal health official close to the process tells CNN./Credit:	Kevin C. Cox/Getty Images

A sudden change in federal guidelines on coronavirus testing came as a result of pressure from the upper ranks of the Trump administration, a federal health official close to the process tells CNN./Credit: Kevin C. Cox/Getty Images

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CDC was pressured 'from the top down' to change coronavirus testing guidance, official says

A sudden change in federal guidelines on coronavirus testing came this week as a result of pressure from the upper ranks of the Trump administration, a federal health official close to the process tells CNN, and a key White House coronavirus task force member was not part of the meeting when the new guidelines were discussed.