Coronavirus variants
South Africa becomes first African country to record over one million Covid-19 cases
By BBC | 3 years ago
President Cyril Ramaphosa is widely expected to announce tougher restrictions to prevent the virus from spreading further....
Coronavirus variants: What are they, how dangerous are they? Here’s everything you need to know
By BBC | 3 years ago
Scientists are racing to find out whether these variants are more transmissible or could present challenges for the Covid vaccine. ...
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