Daybreak's Health Editor, Dr Hilary Jones has told viewers that "a million people are estimated to get the Norovirus every year."
"It's around all year long, it's just worse in the winter," he added.
More top news
Former Girls Aloud singer Kimberley Walsh is pregnant with her second child, she has revealed.
Chancellor George Osborne will seek to reassure financial markets on Monday morning following Britain's decision to leave the EU.
In his first outing since the referendum result, the lead Leave campaigner has outlined his vision for a post-Brexit Britain.