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A new variant of the covid-19 virus is to spread worldwide. The WHO the mutation Omicron, after a letter of the Greek alphabet. It was first in Botswana on the 9th of November. Two weeks later, it was in South Africa and as a "virus of concern". Soon after this, cases were in Hong Kong, Israel, Madagascar and Belgium. Epidemiologists have that this new strain could be extremely infectious. They also said it may able to evade protections us by current vaccines. This has led to countries travel bans. Despite these, new cases have already been reported in the UK, Germany and the Czech Republic.

Scientists are currently Omicron to assess the dangers it might . They have detected 50 genetic changes in the DNA that the spikes surrounding the crown of the virus. Current vaccines on these spikes. Any changes in the DNA of the spikes could make the virus more virulent, more transmissible and possibly more resistant against vaccines. Scientists say it could a few weeks to how effective our vaccines are against Omicron. The White House's chief medical adviser has that: "When you have a virus that is this degree of transmissibility, and you're already travel-related almost invariably is ultimately going to all over [the world]."

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