The study Moderna cited included more than 3,700 adolescents. No cases of Covid were observed in participants who received two doses of the vaccine, while four cases were observed in the placebo group, according to the company.
The study Moderna cited included more than 3,700 adolescents. No cases of Covid were observed in participants who received two doses of the vaccine, while four cases were observed in the placebo group, according to the company.