Experts say Brazil strain may be able to 'escape' vaccine-triggered immunity

[السياسي]

Around 75 per cent of people in Manaus, located in the heart of the Amazon rain forest, were thought to have been infected by the virus during the first wave, which should have sparked 'herd immunity'.

https://www.dailymail.co.uk/news/article-9197959/Experts-say-Brazil-strain-able-escape-vaccine-triggered-immunity.html?ns_mchannel=rss&ito=1490&ns_campaign=1490 ]قرااء المزيد ..... [/url]