In this article
Check out the companies making headlines before the bell:
Pfizer (PFE), BioNTech (BNTX) – The companies said studies showed that three doses of their Covid-19 vaccine neutralized the omicron variant, while two doses still offered protection. Pfizer and BioNTech also said they're continuing to work on an omicron-specific vaccine. Pfizer and BioNTech came well off earlier premarket lows on the news, with Pfizer up 1.4% and BioNTech trimming its loss to 1.5%.
Campbell Soup (CPB) –
Read more on cnbc.com