Spatiotemporal-based clusters as a method for dengue surveillance.

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Evaluation of the importance of fever with respect to dengue prognosis according to the 2009 WHO classification: a retrospective study.

Background: The 2009 revised World Health Organization (WHO) guidelines for dengue describe fever as the core symptom. Accordingly, the diagnosis of non-febrile patients is complicated. The aim of this study was to evaluate the importance of fever in patients with dengue according to the 2009 revised WHO classification.

Low sensitivity of the tourniquet test for differential diagnosis of dengue: an analysis of 28,000 trials in patients.

Background: The aim of this study was to evaluate the utility of the tourniquet test (TT) for dengue diagnosing. To our knowledge, no previous study with such a large sample, of this duration, with as many laboratory methods referenced, or relating the results of the TT to the 2009 WHO classification of severity has been conducted thus far.

Methods: In this study, we analyzed the records of 119,589 suspected dengue cases in a Brazilian city, with 30,670 confirmed cases.