Norovirus risk lasts up to 10 days.

By Helen Carter

GASTROENTERITIS guidelines should emphasise that patients with norovirus commonly remain infectious for at least a week after recovery, an infectious diseases expert says.

Professor Lindsay Grayson, professor of infectious diseases at Austin Health in Victoria, was commenting after hospital microbiology findings following a large outbreak in Melbourne confirmed previous research.

The laboratory found most patients excreted virus for 7-10 days.

"There was a large community outbreak of norovirus in 2006 affecting hundreds throughout Melbourne," ...