Moderna’s novel coronavirus vaccine could be approved for children by 2021.Dr. Supriya Sharma’s announcement came shortly after the federal government authorized the Moderna vaccine for use among Canadians aged 18 and older.“It’s not unusual that first trials for any vaccines or any medications for that matter, are actually done in adults,” she said.According to Sharma, recruitment for trials for children aged 12 to 17 are already underway.“The plan is to recruit approximately 3,000 participants in that clinical trial, and that’s already started,” she said.