Assessing the Effectiveness of Sanofi Pasteur's Dengue Vaccine (Dengvaxia) Against Hospitalization and Symptomatic Infection in the State of Parana - Brazil

The effectiveness of Sanofi Pasteur´s dengue vaccine (Dengvaxia®) according to the age will be assessed in five municipalities of Paraná State - Maringá, Foz de Iguaçu, Londrina, Sarandi and Paranaguá. Any health service located in each of the five municipalities may report a suspected dengue case. However, in all five municipalities, there is a large public emergency service, the UPA. There are currently three UPA in Londrina, two in Maringá and Foz do Iguaҫu and one each in Paranaguá and Sarandi. These facilities are responsible for reporting the majority of suspected dengue cases. In Londrina and Maringá, the private health sector also provides emergency care. The implementation of the study protocol adds a collection of a blood sample for PCR to the existing protocol for addressing suspected dengue cases among individuals within the target vaccination age groups.

The study will count on the activities already carried out by teams of epidemiological surveillance of dengue intensifying the identification of the serotype through the laboratory method RT-PCR (Reverse Transcription Polymerase Chain Reaction) in real time. In addition, the investigators will identify hospitals and health units that attend dengue cases for sample collection, to perform real-time RT-PCR and initial processing of the blood samples collected from the controls.