Swine Flu Hits Mexico

Passenger Maria Pia, of Uruguay, wears a protective mask as she waits for her flight at the airport
Marco Ugarte / AP

Waiting for Takeoff
Passenger Maria Pia, of Uruguay, wears a protective mask as she waits for her flight at the airport in Mexico City. Health workers are screening airports and bus stations for people taken ill by a new strain of swine flu that experts fear could become a global pandemic

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