William Hanage: “surveillance is such that we’d not detect any such variant until it was already emerged and well established.”
–
CDC: No sign of homegrown U.S. coronavirus variant, but scientists need to look harder – The Washington Post washingtonpost.com/health/cdc-no-…
–
CDC: No sign of homegrown U.S. coronavirus variant, but scientists need to look harder – The Washington Post washingtonpost.com/health/cdc-no-…