The New Zealand Olympic Committee says it's taking the Zika threat seriously - but it won't stop New Zealand attending the games.

More than 100 medics and experts have signed a letter to the World Health Organisation, calling for the games to be moved until the disease can be properly controlled.

Olympic Committee chief executive and secretary general Kereyn Smith told Mike Hosking they've made a decision to go and will, unless they get the tough word from the top.

"We'd have to be advised by New Zealand Ministry of Health who work with the WHO and other agencies that it's just not acceptable to go all governments, so that's really what it would take," she said.

"Reality is that it's just one event, and because it's big it's important, significant in the spotlight, it just becomes the focal point for so much debate about all sorts of global issues."

LISTEN ABOVE: Olympic Committee chief executive and secretary general Kereyn Smith speaks to Mike Hosking