The COVID-19 vaccine currently in development by Pfizer and BioNTech has been found to be 90% effective in preventing people from getting the virus, it has been confirmed Phase 3 of the Pfizer trial involved 43,538 participants. They received two doses of either the immunisation or a placebo, with 90% protected from the virus within … Continue reading Pfizer vaccine found 90% effective in ‘great day for science and humanity’