This Study Will Describe the Burden of DENgue Fever Virus (DENV) Illness Among Household Members Aged 6 Months to 50 Years of Selected Communities in Latin America and Southeast Asia

All participants will have an enrolment visit with collection of a blood sample and a termination contact/visit. Participants or their parents/guardians will be contacted weekly or every two weeks to monitor the occurrence of febrile episodes. Additional visits will be made if febrile episodes occur. In case of dengue suspicion, a blood sample will be collected.