The US tested the wrong people for coronavirus

And you can tell because of a number called the test positivity rate. Become a Video Lab member! http://bit.ly/video-lab As the rate of new coronavirus cases in the US slows down, many states and cities there are encouraging businesses to open again, easing the lockdowns that have been in place since March. But public health experts warn that in many of those places, opening up is premature. The reason is that throughout the US, as well as in many other countries, we still don’t really know how many people have the virus, or where they are. That’s dangerous because it…
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