Diagnostic study of Dengue in Emergency Care

INTERVENTION: Different algorithms clinical diagnosis of dengue will be compared in a outpatient unit. Control Group ( clinical algorithm proposed by WHO 2009): 150 subjects will undergo the standard protocol for the diagnosis of dengue consisting of at least two of seven signs and symptoms (fever, myalgia, asthenia, headache, retrorbitrária pain, arthralgia, rash) and Intervention Group: 150 individuals will be subjected to the experimental protocol for the diagnosis of dengue, which consists of (lymphadenopathy, leukocyte count below 6000/mm3, rash, thrombocytopenia, ocular congestion. Both groups will be subjected to rapid immunochromatographic dengue dengue NS1 (Bio‐Easy) E01.370 Procedure/surgery CONDITION: C02.081.270 Dengue ; C02.081.270 PRIMARY OUTCOME: Accurate, more sensitive and specific case definition to guide the rapid test request and appropriate referral of the case. To compare Likelihood Ratios and Diagnostic Odds Ratios of each model. Reliability of each clinical prediction rule measured by kappa values ??interpreted according to Landis and Koch, 1977. SECONDARY OUTCOME: Need to review clinical case defined as at least a return to emergency unit INCLUSION CRITERIA: Patients of both genders over 18 years assisted in Emergency Care Units in Rio de Janeiro, with fever for up to 3 days without other infectious etiology.