An electron microscope image shows the Sars-CoV-2 virus that causes Covid-19 emerging from the surface of a cell cultured in the lab. Image: National Institute of Allergy and Infectious Diseases via AFP
An electron microscope image shows the Sars-CoV-2 virus that causes Covid-19 emerging from the surface of a cell cultured in the lab. Image: National Institute of Allergy and Infectious Diseases via AFP

Coronavirus variant Omicron found in South Africa ‘of concern’, says WHO

  • Biden orders US travel ban on visitors from eight African countries as a ‘precautionary measure’, joining governments from the EU, to the UK to Hong Kong
  • Moderna to develop a booster shot to target the new threat, as scientists seek to ascertain whether the variant is resistant to existing Covid-19 vaccines

Topic |   Coronavirus pandemic
An electron microscope image shows the Sars-CoV-2 virus that causes Covid-19 emerging from the surface of a cell cultured in the lab. Image: National Institute of Allergy and Infectious Diseases via AFP
An electron microscope image shows the Sars-CoV-2 virus that causes Covid-19 emerging from the surface of a cell cultured in the lab. Image: National Institute of Allergy and Infectious Diseases via AFP
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