More than 4,000 people remain in evacuation centres just days after Cyclone Gita hit Tonga.
Flooding, confined spaces, and overcrowding have sparked fears among health officials over the spread of water-borne diseases.
Newshub reporter Mitch McCann called in to The AM Show from Tonga to help explain the conditions in Tonga.
An outbreak of dengue fever, a dangerous mosquito-borne disease, recently hit the nation last month.
Officials are concerned that dengue fever will spread further as much of Tonga has been left flooded and in an unsanitary condition.
As of Friday morning, there are still islands that have not received any aid since the cyclone hit.
Mr McCann explains that beyond disease control - infrastructure is a major issue across the country.
“As soon as you get on the ground and you drive here, you realise the devastation,” Mr McCann said.
“Many people have no homes to go to,” he said. “And they’re just trying to get back on with their lives.”
That being said, Mr McCann notes that many of the people in Tonga are “incredibly resilient”.
Watch the full interview with Mitch McCann above.
The AM Show with Duncan Garner, Amanda Gillies and Mark Richardson, weekdays 6-9am on RadioLIVE and streaming live to the rova app on Android and iPhone.