covid symptoms
The virus continues to linger for people who were hospitalised at the start of the pandemic.
The Delta variant triggers different symptoms compared to the first wave of Covid infections in the UK.
Around one in five people with Covid-19 symptoms experience loss of taste or smell only.
NICE has published guidance on coronavirus symptoms in young people and children for the first time.
The professor leading the UK's Covid Symptom Study app is seeing "increasing numbers of Covid tongues and strange mouth ulcers".