A machine used to measure body temperatures is delivered to Comalapa International Airport in El Salvador
A machine used to measure body temperatures is delivered to Comalapa International Airport in El Salvador April 30, 2009. The El Salvador government has announced a preventive alert against influenza A (H1N1), formerly referred to as swine flu. Public health authorities reported three suspected cases of the virus in the country. REUTERS/Luis Galdamez (EL SALVADOR AGRICULTURE TRANSPORT HEALTH SOCIETY)
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