WHO chief Tedros Adhanom Ghebreyesus has warned gaps in vigilance are leaving space for a troubling new variant to emerge
The World Health Organization estimates that 90% of the world population now has some resistance to Covid-19, but warned that a troubling new variant could still emerge.
Gaps in vigilance were leaving the door open for a new virus variant to appear and overtake the globally dominant Omicron, the WHO director general, Tedros Adhanom Ghebreyesus, said.
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