There are 2 article(s) tagged Xinhua Yu:

• June 2021

  • 70% in Shelby County immune; once that would have been herd immunity

    With the more contagious U.K. variant, a safe point of herd immunity is now 80% or more.

    By Jane Roberts June 08, 2021

• April 2021

  • Leftover blood tests lead to COVID revelation

    A U of M researcher combing through hundreds of local samples has found almost double the coronavirus antibodies expected. 

    By Jane Roberts April 20, 2021