All viruses change over time. The more people a virus infects, the more chances it has to mutate into a new variant.
So countries in which the coronavirus is spreading more widely are more likely to see problems like this, experts say.
The surest way to boost the chances of a worrisome coronavirus mutation: let it spread unchecked.
“More infected people means more opportunity for the development of mutations. More movement of people … means new variants can spread faster,” Dr. Shira Doron, an infectious-disease specialist at Tufts Medical Centre, told Business Insider.
When viruses infect a body, they replicate. More spread means more replication, which raises the likelihood of genetic errors. So in places where transmission is high, we are more likely to see a harmful variant emerge, experts say.
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Canada extends ban on UK flights till Jan 6
By IANS |
Published on
Thu, Dec 24 2020 9:27 IST |
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Canada extends ban on UK flights till Jan 6. Image Source: IANS News
Ottawa, Dec 24 : Canadian Prime Minister Justin Trudeau has announced that his government will extend the ban on passenger flights from the UK until January 6 in the wake of the discovery of two new coronavirus strains in Britain.
The ban was initially set to expire in 72 hours, reports Xinhua news agency. In addition to the significant measures we already have in place, we acted quickly on additional travel restrictions in response to the situation in the UK, Trudeau said at a press conference in Ottawa on Wednesday.