The Omicron variant is spreading at an unprecedented rate, the World Health Organization has said. WHO Director General Tedros A. Ghebreyesus said that a total of 77 countries have reported Omicron cases so far but the reality is that this variant is probably yet to be detected in some countries.

"Omicron is spreading at a rate we have not seen with any previous variant. I need to be very clear: vaccines alone will not get any country out of this crisis. It's not vaccines instead of masks, distancing, ventilation or hand hygiene. Do it all. Do it consistently. Do it well", said Ghebreyesus.