Updated On: 10 December, 2021 08:24 AM IST | Geneva | Agencies
Chief Tedros Ghebreyesus says even if it does turn out that omicron causes less severe disease, we can’t slack off vigilance against the virus

Commuters wear masks to protect against Covid-19 while walking through the La Defense business district transportation hub in Paris on Wednesday. Pic/AP
Early data indicates the Omicron Covid variant may more easily reinfect people who have already had the virus or been vaccinated than previous variants, but could also cause milder disease, the WHO said Wednesday. “Emerging data from South Africa suggests increased risk of reinfection with Omicron,” World Health Organization chief Tedros Adhanom Ghebreyesus told reporters, adding that “there is also some evidence that Omicron causes milder disease than Delta”.
But he stressed that more data was needed before drawing firm conclusions, and urged countries everywhere to boost their surveillance to help provide a clearer picture of how Omicron is behaving. The hopeful assessments came as global concern grew over the heavily mutated variant, which has forced dozens of nations to re-impose border restrictions and raised the possibility of a return to economically punishing lockdowns.