Aid workers on the ground in Solomon Islands say the biggest fear at the moment is the outbreak of disease in the tropical heat among the victims of the disaster.
Dr George Jalini says conditions are very, very difficult and it is almost impossible to prevent infections in the open-air environment.
He has appealed for more aid for his makeshift hospital in Gizo
Nancy Jolo of the Solomons Red Cross says children is some of its campsites are starting to experience diarrhoea.
She says the principle needs right now are for water.
World Vision Australia chief executive, Tim Costello says the water shortage critical as gravity-fed wells were contaminated with salt water while food supplies has been lost.