A stomach bug likely to be norovirus is circulating in the Gisborne community, staff at Gisborne Hospital warn.
Primary school kapa haka teams from all corners of New Zealand are currently in the city to compete in Te Mana Kuratahi 2017, the national primary schools' kapa haka festival.
Fifty-seven teams wil be competing over the next week in the country's largest largest kapa haka competition, with thousands of visitors expected, including iwi leaders, MPs and officials.
Hauora Tairawhiti medical officer of health Dr Margot McLean warned that those who were vomiting, had diarrhoea or stomach pains should stay away from work and school.
Gastroenteritis admissions have increased at Gisborne Hospital Emergency Department, and some schools are reporting increased numbers of children away with gastro, she said.