CTV News shows that infectious disease expert Colin Furness says there are 2 major problems with the government's latest travel restrictions.
The new virus variant, called B.1.617, was initially detected in India with 2 mutations - the E484Q and L452R. Viruses mutate all the time, as part of evolutionary biology. Some mutations weaken the virus while others may make it stronger, enabling it to proliferate faster or cause more infections. It is not known if these mutations first mutated in India or other countries.
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