Pfizer says its COVID-19 vaccine candidate is 90% effective
Pfizer announced Monday that its COVID-19 vaccine candidate has been 90% effective.In a press release, the company said that in Phase 3 trials, the vaccine has proven to promote a…
Pfizer announced Monday that its COVID-19 vaccine candidate has been 90% effective.In a press release, the company said that in Phase 3 trials, the vaccine has proven to promote a…