The chief medical officer at the LBJ Hospital in American Samoa, Taulapapa Dr Aloiamoa Anesi, says a community clean up to remove breeding grounds for mosquitoes should begin now.
Hundreds of people in American Samoa have contracted dengue since September, with one report saying nearly every household or workplace has been affected.
Dr Anesi says the clean up programme should have been active months ago and on going as long as the territory is in the wet season.
He says the Department of Health should take the lead in preventive health care.
But the Department's Medical Director, Dr Ivan Tuliau, says the campaign against dengue is scheduled for next month for optimum effect, since people are pre-occupied with the holiday celebrations.