Pfizer Omicron Effectiveness

Pfizer Omicron Effectiveness News

‘Pfizer COVID-19 vaccine provides less immunity against Omicron than other variants’
World

‘Pfizer COVID-19 vaccine provides less immunity against Omicron than other variants’

The yet-to-be peer reviewed study, posted on the pre-print repository medRxiv, also found that considerable immunity is retained in people who were both vaccinated and previously infected