45 countries. The Food and Drug Administration (FDA) has issued this authorization for people in the United States aged 18 or older.
The vaccine has also been authorized for use across the European Union after a recommendation by the European Medicines Agency, as well as in Canada and the United Kingdom.Stay informed with live updates on the current COVID-19 outbreak and visit our coronavirus hub for more advice on prevention and treatment.Clinical trial data show that the vaccine has an efficacy of 94.1% at preventing symptomatic COVID-19.Like the Pfizer-BioNTech vaccine, the Moderna vaccine is an mRNA vaccine.
While these two are the first mRNA vaccines to be authorized for use in humans, scientists have been researching this technology.