Paul TurnerClaudia L. TurnerWanitda WatthanaworawitVerena I. CarraraBryan K. KapellaJohn PainterFrançois H. NostenShoklo Malaria Research UnitMahidol UniversityUniversity of OxfordCenters for Disease Control and Prevention2018-09-242018-09-242010-09-01Emerging Infectious Diseases. Vol.16, No.9 (2010), 1366-137210806059108060402-s2.0-77956051289https://repository.li.mahidol.ac.th/handle/20.500.14594/29550We describe the epidemiology of influenza virus infections in refugees in a camp in rural Southeast Asia during May-October 2009, the first 6 months after identification of pandemic (H1N1) 2009 in Thailand. Influenza A viruses were detected in 20% of patients who had influenza-like illness and in 23% of those who had clinical pneumonia. Seasonal influenza A (H1N1) was the predominant virus circulating during weeks 26-33 (June 25-August 29) and was subsequently replaced by the pandemic strain. A review of passive surveillance for acute respiratory infection did not show an increase in acute respiratory tract infection incidence associated with the arrival of pandemic (H1N1) 2009 in the camp.Mahidol UniversityMedicineArticleSCOPUS10.3201/eid1609.100220