Unless a country seals itself off from the entire world, travel bans to prevent the importation of coronavirus variants are ineffective, says Shabir Madhi, dean of the Faculty of Health Sciences at the University of the Witwatersrand in South Africa.
At a news conference Monday, Quebec's Public Health Director Dr. Horacio Arruda said tests revealed the variant in a woman who had recently returned from Nigeria.
The case was discovered after 115 people in the province who had travelled to southern African countries were asked to take a new COVID-19 test and isolate, in accordance with new federal government rules announced Friday, Health Minister Christian Dubé said.
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Coronavirus: What's happening in Canada and around the world on Monday | CBC News
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