Cases of the heavily mutated Omicron variant have been confirmed in 77 countries.
The new coronavirus variant Omicron is spreading across the globe at an unprecedented rate, the World Health Organization (WHO) warned.
But at a press conference, WHO chief Tedros Adhanom Ghebreyesus said it was probably in many others that had yet to detect it.
Dr Tedros said he was concerned that governments did not make enough to tackle the variant.
“Surely, we have learned by now that we underestimate this virus at our peril. Even if Omicron does cause less severe disease, the sheer number of cases could once again overwhelm unprepared health systems,” he said.
The World Health Organization has earlier warned that the global risk from Omicron variant is “very high” based on early evidence. It further said it could lead to surges with “severe consequences.”
The new variant was first identified in Botswana, before it rapidly outcompeting other versions of the virus in the region of South Africa that includes Johannesburg.
A health official calls it “the most significant variant” to date, but the UK didn’t confirm any cases to date.
“It is bad news, but it’s not doomsday,” an Oxford scientist tells the BBC.
Transport Secretary Grant Shapps says the UK is taking a “safety-first approach” in regard to the travel ban.
Nine countries including Germany, Italy, Israel and Singapore have also restricted travel.
The World Health Organization will hold a special meeting later today to discuss the variant.