647735 external_news 1621966570 1621966570 This story from WMAZ-TV/Macon's website is a repost of an 11Alive/Atlanta feature on why mixing and matching Covid-19 vaccines isn't a good idea. Included in the story are comments from M.G. Finn, Professor and Chair in the School of Chemistry and Biochemistry, and James A. Carlos Family Chair for Pediatric Technology. 

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