Why it’s a big deal if the first COVID vaccine is ‘genetic’

There are a lot of caveats to Pfizer and BioNTech's news. But plenty of reasons to be hopeful too. If approved by the FDA, Pfizer and BioNTech’s mRNA vaccine would be the first of its kind, setting a record for speed — but raising questions about distribution. Megan Molteni investigates in WIRED magazine. This article was amended following the announcement by Moderna regarding its first interim findings in mid-November.