A new Covid variant has been detected in a number of countries and causing concern due to the rate it is spreading. Nicknamed after a mythical two-headed dog, Orthrus, or CH.1.1, is a new Omicron sub-variant.
It has been detected in 66 countries including the USA, Thailand, India, China and Australia as well as the UK. Between them, Kraken and Orthrus now make up 40% of all Covid cases in the UK, according to the UK Health Security Agency.
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