I think they are just appearing nowish. https://www.sciencenews.org/article/covid-19-coronavirus-pandemic-how-antibody-blood-tests-work https://www.sciencenews

I think they are just appearing nowish. https://www.sciencenews.org/article/covid-19-coronavirus-pandemic-how-antibody-blood-tests-work https://www.sciencenews.org/article/covid-19-coronavirus-pan...