Fifty-six people who fell ill after attending functions at a bar in Bridgend county had the norovirus, it has been confirmed.
Public Health Wales said the Hi-Tide bar in Porthcawl remains open after the outbreak of diarrhoea and vomiting.
The outbreak has now been declared over.
A bar spokesman said: “We are confident that we provided, and will continue to provide, the very highest standards of cleanliness and hygiene.”
“We would like to wish all those affected a full and speedy recovery,” the spokesman added.