“Thing just popped up recently so how can tests be available so soon and so fast?”
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Once the genome is sequenced, it’s easy to make kits because they know what they’re looking for in the test. Anyone can make the tests with that info.
It came out of Chine so how soon were it possible ID the virus then make a test kit for 320 million people????? And by what lab(s) to drop everything to start making those kits???