For Mr Te Patu the trip is mostly self-funded, with a contribution from Te Ati Hau Trust.
After that he has observer status as part of the New Zealand delegation at the World Health Assembly in the same Swiss city. For the next three years, New Zealand will be representing the Asia-Pacific region at the annual World Health Assembly. That gathering mainly consists of health ministers from 194 countries.
Mr Te Patu has had decades of involvement with public health and travelled internationally for the health sector. He's looking forward to connecting with others in the field.
He said public health was the research and measures that kept people healthy and out of hospital. Internationally it dealt with everything from Ebola outbreaks to childhood obesity, and it was very important.
"It won't be an idiot pushing the button or any other apocalyptic happening that will be the end of the human race. It will probably be a virus," he said.