BioNTech officials on Wednesday (Dec. 8) said the company’s COVID-19 vaccine, which it produces in partnership with Pfizer, should be a three-dose vaccine, given recent laboratory data that show the primary two-dose regimen might not provide enough protection against infection from the Omicron variant, which was first identified in South Africa and has since spread across the globe. The company also signaled it supports giving the third dose three months after the second dose, instead of the six-month interval the...