American Samoa's Governor Lolo Matalisi Moliga has directed the relevant agencies to consider whether travel policies should be tightened to ensure infected travellers do not enter the territory.
The directive was made today after an update on a chikungunya outbreak in the territory,
The Director of Health, Motusa Tuileama Nua, says nearly 500 people have sought medical care because of the disease.
Seven people have been hospitalised due to chikungunya but there have been no deaths.
Blood tests overseas for a young man who died last month revealed he did not die from the disease.