The global risk from the new Omicron coronavirus variant is “very high”, the World Health Organization warned, as Japan moved to ban foreign visitors in an attempt to limit the spread of the heavily mutated strain.
Outlining its preliminary findings on the strain first detected in southern Africa, the health body warned of its potentially “severe consequences”, as scientists raced to understand the effect of its multiple mutations on the severity of disease and its effect on natural and vaccine-caused immunity.
Anecdotal reports that emerged from South Africa over the weekend appeared to suggest that the disease produced milder symptoms although scientists stressed it was too early to tell.
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