US begins reopening as Covid-19 cases decline
Pfizer announced it will trial smaller doses of its Covid-19 vaccine for children 11 years old. The company said it is moving to a Phase 2/3 trial, and plans to enroll up to 4,500…
Pfizer announced it will trial smaller doses of its Covid-19 vaccine for children 11 years old. The company said it is moving to a Phase 2/3 trial, and plans to enroll up to 4,500…