Study: The virus that causes #COVID19 may have been in the US as early as mid-December 2019, a month before the first confirmed case, based on antibodies found in donated blood. Learn more: https://t.co/aRA1co4tqX https://t.co/B7IcdEMDse
Study: The virus that causes #COVID19 may have been in the US as early as mid-December 2019, a month before the first confirmed case, based on antibodies found in donated blood. Learn more: https://t.co/aRA1co4tqX https://t.co/B7IcdEMDse