The United States may have tested roughly 170,000 people so far, Dr. Deborah Birx, the White House coronavirus task force response coordinator, told CNN’s Wolf Blitzer Friday.
“I know that in general our positivity rate is between 9 and 11%,” Birx said. “If 90% are negative, you can do the calculation of how many tests we have done.”
There are currently more than 17,000 confirmed cases in the United States.
On Thursday, Vice President Mike Pence told reporters that “tens of thousands of tests are being performed every day.”
On Friday, President Trump said, “We have now a great system. And it’s almost fully in gear, but it’s able to test millions of people.”
Currently, testing occurs through a variety of channels, including public health labs, hospitals and commercial labs. US health officials have said they are working on a system to share that data with the US Centers for Disease Control and Prevention, as required by law.
Birx said she expects numbers to rise sharply over the coming days as labs run through a backlog of tests, as well.
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