( CNN ) -- The mayor of New Orleans , Louisiana , has been quarantined in China after possible exposure to the H1N1 virus , his office said Sunday . New Orleans Mayor Ray Nagin flew to China as part of an economic development trip , his office said . Mayor Ray Nagin , who traveled to China on an economic development trip , flew on a plane that carried a passenger being treated for symptoms suspected to be from the virus , commonly known as the swine flu virus , the mayor 's office said in a statement . Nagin , his wife and a member of his security detail have been quarantined in Shanghai , China , though all three are symptom free , the statement said . `` The mayor is being treated with utmost courtesy by Chinese officials , '' the statement said . Ceeon Quiett , the mayor 's director of communications , told CNN that Nagin had been sitting beside a passenger who `` exhibited the symptoms of H1N1 , '' but Nagin showed no signs of illness . `` We have talked with him and he is in good spirits , '' Quiett said , adding that there was no indication how long the quarantine would last . While not confirming identities , the Shanghai Municipal Center for Disease Control and Prevention said three Americans are being quarantined in a hotel called the Jinjiang Inn in the Nanhui district of Shanghai .
Passenger on Mayor Ray Nagin 's plane has possible H1N1 symptoms . Nagin 's office : Nagin , his wife and an associate are symptom-free but quarantined . Nagin was on economic development trip in China . Mayor is `` being treated with utmost courtesy by Chinese officials , '' his office says .