Pfizer Says Vaccine Is 95% Effective
After concluding a phase 3 study of its COVID-19 vaccine candidate, Pfizer revealed Wednesday that the vaccine has 95% efficiency. Here & Now's Robin Young gets the latest from Hel…
After concluding a phase 3 study of its COVID-19 vaccine candidate, Pfizer revealed Wednesday that the vaccine has 95% efficiency. Here & Now's Robin Young gets the latest from Hel…