The message comes after the Welsh Ambulance Service declared a critical incident on Monday evening.

Health trust chief executive Nick Hulme is urging patients and visitors to wear face masks.

The first minister has urged eligible Scots to get vaccinated after a warning from public health authorities.

High levels of the virus are circulating, leading to an increase in GP consultations and hospitalisations.

Four health boards bring in immediate mask rules as figures suggest flu is yet to peak in Wales.

Almost one in 15 beds at Grampian's biggest hospital are currently occupied by patients with flu.

The UKHSA advises practicing good hygiene and staying away from those with symptoms.

People in the West Midlands are getting cold and flu but others have managed to avoid it so far.