Puzzlingly China has not generated, or at least shared, #Covid19 serology data — studies looking to see if more people have been infected than have been detected. They should have done this weeks ago.
Now @CDCgov seems poised to start this work. Good.https://t.co/EI8jVF1JQU

— Helen Branswell 🇨🇦 (@HelenBranswell) March 11, 2020