Canada's chief science adviser issues warning about B.C.'s 'experiment' with vaccine timing

British Columbia's decision to extend to four months the interval between first and second doses of three different vaccines amounts to a "population level experiment," said Mona Nemer, Canada's chief science adviser. https://www.cbc.ca/news/politics/nemer-henry-vaccine-interval-experiment-1.5932714?cmp=rss #news/politics