The gastro-bug has spread to the hotel where the New Zealand team is staying for the World Athletics Championships in London.
It's understood there's one or two cases of the norovirus at the accommodation near the Tower of London.
None of New Zealand's athletes have been affected, but Athletics New Zealand is taking all necessary precautions by being more vigilant with hygiene.
There are five more Kiwis still to compete at the World Champs, with four of them in action this morning [NZT].
Charlie Bristow is in London thanks to Air New Zealand.