The Asia Pacific Congress of Asthma, Allergy, and Clinical Immunology (APCAACI) 2013 will be held on November 14-17, 2013 in Taipei International Convention Center, Taiwan. With the theme “Allergy, Infection, and Immunity in a Changing World”, the APCAACI 2013 program has been constructed in conjunction with various major topics such as, genetics to epigenetics of allergy and asthma in the emerging world, effect of global weather change cutting-edge of allergy and clinical immunology and frontier of allergy and asthma prevention and treatment. The congress official website is