Trinh Quan Huan, Vietnam's vice minister of health, center, talks to hospital staff members concerning preparations to fight against swine flu, at a hospital in Ho Chi Minh City, Vietnam on Monday, June 1, 2009. An American woman of Vietnamese origin and her 9-year-old son who recently returned from the U.S. have tested positive for swine flu, bringing the country's total cases to three, doctors said Monday. AP Photo logo AP Photo 33 months ago

Trinh Quan Huan, Vietnam's vice minister of health, center, talks to hospital staff members concerning preparations to fight against swine flu, at a hospital in Ho Chi Minh City, Vietnam on Monday, June 1, 2009. An American woman of Vietnamese origin and her 9-year-old son who recently returned from the U.S. have tested positive for swine flu, bringing the country's total cases to three, doctors said Monday.