An expert has warned the public to watch out for 'Covid tongue' as the number of people suffering with the new symptom rises.
Professor Tim Spector revealed the odd virus symptom in a social media post on Wednesday. The King's College London epidemiologist, who heads the Covid Symptom Study App study, said one in five people still have less common indicators.
And he also used the post on Twitter to urge the public to stay at home if they are feeling at all unwell - even if it's just a case of fatigue.