Bangkok, Thailand: Thai students wear face masks at a schoolPhotograph: AFP/Getty ImagesGuatemala City: A girl wearing a face mask, leaves schoolPhotograph: Rodrigo Abd/APMexico City, Mexico: A man stands in front of a thermal camera, set up to screen outgoing passengers as a precaution against the spread of swine flu, at the international airportPhotograph: Gregory Bull/APHong Kong, China: A girl wearing a mask sits with her classmate at a kindergarten in a residential estate. Hong Kong authorities today ordered all primary schools in the city to be closed for two weeks after the first cluster of local swine flu cases was foundPhotograph: Mike Clarke/AFP/Getty ImagesManila, Philippines: A student nurse uses a thermal scanner as she checks the temperature of a foreign student for possible swine flu infection before entering the school compoundPhotograph: Pat Roque/APGuatemala City, Guatemala: A woman wearing a face mask waits for a doctor at the emergency room of the San Juan de Dios hospitalPhotograph: Rodrigo Abd/APHyderabad, India: A security guard patrols a corridor outside an isolation ward at the government chest hospitalPhotograph: Noah Seelam/AFP/Getty ImagesBeijing, China: Two masked airport employees flank passengers at Beijing international airportPhotograph: Liu Jin/AFP/Getty Images
