The Ministry of Health in Samoa is monitoring the condition of three people who arrived in the country yesterday from the United States with flu like symptoms.
All incoming passengers on flights from New Zealand, the United States, and American Samoa are now being screened by health officials at the main international airport.
The health ministry has warned the public not to panic while tests are being carried out on the three for swine flu.
All airlines and shipping agents in Samoa have also been advised by the Ministry of health's task force that includes representatives of several government ministries and corporations not to board ships or aircraft's which may carry someone who may show flu like symptoms.
The World Health Organisation has raised the alert of the swine flu to level five, one short of a full blown global pandemic.
Level five alert means human to human transmission in at least two countries.
The alert comes after a 23 month old Mexican child died in Texas the first death from swine flu outside Mexico where the outbreak originated.