More New Zealand medics leave today for Samoa, as the authorities there shift their focus towards limiting the spread of infectious and communicable diseases.
The Government says it has been advised of a high demand for wound care, and a growing need for mental health staff.
A plastic surgeon and a psychiatrist are among the 19 medical experts already working in Tonga.
The coordinator of New Zealand's health volunteers, Ron Dunham, says more are due to depart on a Defence Force flight at midday.
