What happened to the old COVID variants, like Delta? Could they come back? Submitted by number1dork t3_120rixo 2 years ago in askscience 209 comments 3,359
[deleted] t1_jdiv4it wrote 2 years ago Reply to comment by yukon-flower in What happened to the old COVID variants, like Delta? Could they come back? by number1dork [removed] Permalink Parent 1
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