Speaking to eNCA, prof Karim says this is "simply a new version or mutation of the Omicron variant," but urged the public to remain vigilant.

"Let's just be clear, this is not a new variant, this is a mutation of Omicron, so it's an Omicron variant with additional mutations.

"It’s quite important to make that distinction because there are people who are just scaremongering by referring to it in terms like Kraken; that's all just nonsense.

"In simple terms, this is a version that has the ability to escape antibodies, but that is true of most of the new variants. Fortunately, when you look at this variant it has descended from a variant that we already experienced in South Africa in the middle of last year. We have widespread immunity from vaccines and past infections with the virus.

"We do not expect that this new version of Omicron is going to cause any more severe disease than just a spike in infections at most.

"Of course, people are still being warned to be vigilant, take care of themselves as best they can, and get booster vaccinations. 

"I think the critical issue is that those who have immunity are in a good position and don't need to be concerned, but the people who do need to take extra precautions are the elderly.

"My advice to everybody is to ensure that you have taken three doses of the vaccine as that gives you quite significant protection, but if you've taken your last dose more than six to nine months ago, my advice would be if you're elderly or over 60, take another dose, so take a fourth dose."

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