The main pathogens causing febrile illness and implications for fever management in Laos; results from the Fiebre study by Luangraj, M, Phimolnsarnnousith, V, Singhaxaiyaseng, S, Kanlaya, K, Chansamouth, V, Dubot-Peres, A, Simpson, A, Vongsouvath, M, Davong, V, Lal, S, Roberts, CH, Hopkins, H, Mabey, D, Newton, PN, Ashley, EA, Mayxay, M