The omicron coronavirus variant seems to be rapidly overtaking delta as the dominant virus strain in South Africa and appears able to evade some of the protection provided by previous infection or vaccination, scientists warned Thursday, as governments around the world close their borders and implement new restrictions in an attempt to contain it. READ MORE: https://www.forbes.com/sites/roberthart/2021/12/02/previous-covid-infection-may-not-protect-against-omicron-scientist-warns-as-data-suggests-variant-is-overtaking-delta-in-south-africa/?sh=434cdde14f48 Stay Connected Forbes on Facebook: http://fb.com/forbes Forbes Video on Twitter: http://www.twitter.com/forbes Forbes Video on Instagram: http://instagram.com/forbes More From Forbes: http://forbes.com