Security offcials wearing surgical masks check a passenger's belongings at Juan Santamaria international airport in Alajuela April 28, 2009. Costa Rica found a "highly suspect case of influenza" and has sent the data to the Center for Disease Control and Prevention in Atlanta, United States, for confirmation, said Costa Rica's Health Minister Maria Luisa Avila on Tuesday. This would be the first reported case of swine influenza virus in Central America.[Agencies]