Two doses of the Oxford-AstraZeneca or Pfizer-BioNTech Covid vaccine are less effective at fighting Omicron than previous variants of the virus, scientists say.
British researchers announced on Monday that studies show that the COVID-19 vaccines made by Pfizer and AstraZeneca produce substantially fewer antibodies to fight off the Omicron variant than they do. | December 13, 2021
Two doses of the Oxford-AstraZeneca or Pfizer-BioNTech Covid vaccine are less effective at fighting Omicron than previous variants of the virus, scientists say.