“Pfizer Vaccine, Partial Infection Prevention Effect on Omicron”

A study result showed that the COVID-19 vaccine developed by Pfizer and Biontech had partial infection prevention effects on a new mutation, Omicron. According to Bloomberg News on the 7th (local time), the African Health Research Institute (AHRI) in South Africa was infected with the Omicron mutation in an experiment measuring the effectiveness of two