FDAās decision could help pave the way for other countries that are considering the Moderna vaccine, the first-ever regulatory clearance for the small Cambridge, Massachusetts, company.
Britain, Canada and a few other countries already have cleared the Pfizer-BioNTech shot, with a European Union decision due Monday.
The FDAās main messages:Both the new Moderna vaccine and the Pfizer-BioNTech shot require two doses several weeks apart.
In a study of 30,000 volunteers, the Moderna vaccine was more than 94% effective at preventing symptomatic COVID-19 in people 18 and older.
Like with the Pfizer-BioNTech shot, expect sore arms, fever, fatigue and muscle aches, which are signs the immune system is revving up.