What Johnson & Johnson's 1-shot vaccine could mean for Ontario's most vulnerable

The first doses of Johnson & Johnson's COVID-19 vaccine are set to arrive this week in Ontario, where one expert says they could do a world of good for some of the province's most vulnerable. https://www.cbc.ca/news/canada/toronto/johnson-johnson-vaccine-ontario-vulnerable-1.6004021?cmp=rss #news/canada/toronto