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The latest news on COVID-19 developments in Canada (all times Eastern):
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9:15 a.m.
Health Canada says it's begun its first review of a possible vaccine for COVID-19.
The agency says it's evaluating the vaccine candidate being worked on by pharmaceutical company AstraZeneca and the University of Oxford.
The possible vaccine is undergoing what's called a "rolling review," in which Health Canada accepts data and results from the company's trials as it comes in, rather than waiting for everything to be complete.
Health Canada cautions that starting a rolling review is just one step on the road to approval.
The federal government has put in an advance order for 20 million doses of this vaccine candidate, if it proves safe and effective.
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8:40 a.m.
Prime Minister Justin Trudeau is offering his family's best wishes to U.S. President Donald Trump and the first lady.
Trudeau says he and his wife, Sophie Gregoire Trudeau, hope the president and Melania Trump recover fully from COVID-19.
Trump announced early this morning that both he and his wife have tested positive for the coronavirus.
Gregoire Trudeau tested positive for COVID-19 in March after returning from a trip to England.
She recovered within weeks, and the prime minister never contracted the virus.
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