Concerns over COVID variant trigger more travel curbs

, dubbed a"variant of concern" by the World Health Organization, is potentially more contagious than previous variants of the disease, although experts do not know yet if it will cause more or less severe COVID-19 compared to other coronavirus strains.

"I’ve been told that they expect that a lot more people will test positive after five days. It's a little scary the idea that you’ve been in a plane with a lot of people who tested positive," she said. It could take weeks for scientists to fully understand the variant's mutations and whether existing vaccines and treatments are effective against it. Omicron is the fifth variant of concern designated by the WHO.Although epidemiologists say travel curbs may be too late to stop Omicron from circulating globally, many countries around the world – including the

South Africa is worried that the curbs will hurt tourism and other sectors of its economy, the foreign ministry said on Saturday, adding the government is engaging with countries that have imposed travel bans to persuade them to reconsider. Omicron has emerged as many countries in Europe are already battling a surge in COVID-19 infections, and some have re-introduced restrictions on social activity to try to stop the spread. Austria and Slovakia have entered lockdowns.The new variant has also thrown a spotlight on disparities in how far the world's population is vaccinated.

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