Passengers of AeroMexico flight AM098 receive quarantine checks up on their arrival at the Shanghai Pudong International Airport in east China's Shanghai municipality, on April 30, 2009. It's the first flight from Mexico to China since the spread of swine flu, and serious quarantine measures were taken at the airport. [Xinhua]

Passengers of AeroMexico flight AM098 receive quarantine checks up on their arrival at the Shanghai Pudong International Airport in east China's Shanghai municipality, on April 30, 2009. It's the first flight from Mexico to China since the spread of swine flu, and serious quarantine measures were taken at the airport. [Xinhua]