More than 20 million Canadian adults have received at least one dose of a COVID-19 vaccine. But should we be prioritizing older Canadians their second doses, instead of expanding eligibility to younger age groups? Dr. Amit Arya, a palliative care physician, Tweeted his team saw a COVID-19 patient who died after only receiving one dose. He says he can't help but think she may be alive today had she gotten both doses. Dr. Arya joins Kristy Cameron on Ottawa Now.