South African Covid mutation poses 're-infection risk' which could overpower vaccines, study finds

[السياسي]

The strains discovered in Britain, South Africa and Brazil all have mutations of a spike protein, which enables the virus to latch onto human cells and therefore plays a key role in driving infections.

https://www.dailymail.co.uk/news/article-9167273/Coronavirus-UK-Covid-vaccines-work-against-Kent-mutation.html?ns_mchannel=rss&ito=1490&ns_campaign=1490 ]قرااء المزيد ..... [/url]