Whilst experts say Nimbus symptoms are broadly similar to earlier versions of the virus a ‘razor blade sore throat’ could be a key sign of the new variant.

According to Dr Naveed Asif, a GP at The London General Practice, this distinctive symptom is characterised by a sharp, stabbing pain when swallowing, often at the back of the throat.

Other symptoms linked to the strain include redness in the back of the mouth and swollen neck glands, as well established common Covid symptoms like fever, muscle aches and congestion.