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- Mutated virus may re-infect people who once had covid-19, sparking debate and concernThe Washington Post
- Covid: What has the government done about the South African variant?BBC News
- What are the variants of Covid – and should we be concerned?The Guardian
- Let’s stop naming COVID variants after countries – Mother JonesMother Jones
- “ Vaccines measure the key factors to fight against viral strains ”Anadolu Agency
- See full coverage on Google News
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