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Covid-19: Indian variant challenges vaccines

Covid-19: Indian variant challenges vaccines
Covid-19: Indian variant challenges vaccines
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Covid vaccines are less effective against the variant of the virus identified in India, research has shown.
But they would still prevent very seriously illness, University of Cambridge microbiologist Prof Ravindra Gupta said.
He told BBC World News: The virus can potentially infect people who have already been vaccinated, albeit with reduced severity - so they will be protected from the severe effect but could still be infected, feel ill and pass it on to others.
And research had shown the same was true of the variant identified in South Africa. ....

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Could Sars-Cov-2 be evolving to become more transmissible – but less lethal?

All pathogens mutate over time – including coronaviruses and influenza
What does it mean when a virus mutates? It s a question, previously arcane and scientific, that has become particularly pertinent as the threat of a new Sars-Cov-2 variant has wreaked havoc in Britain and beyond.
B.1.1.7 – also known as VUI-202012/01 (the first “variant under investigation” in December) – is far from the first change to be detected in the coronavirus. There were more than 12,000 mutations detected in the first 50,000 Sars-Cov-2 genomes studied and scientists have now diligently recorded more four times that number.
Most of these mutations have little impact – they are akin to misspelling a word, the letters are jumbled but the meaning remains the same. But occasionally, a mutation will trigger a change of behaviour in a virus. ....

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