Swine flu worry: US advises against Mexico trips (AP)

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Swine flu worry: US advises against Mexico trips (AP)

AP - U.S. officials advised Americans against most travel to Mexico on Monday as a swine flu virus that began there spread to the United States and beyond. With 40 cases now reported in the U.S., President Barack Obama urged calm, saying there was reason for concern but not yet a cause for alarm.

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