Table 1. Case definitions used for the study.

Severe acute respiratory infection (SARI) case-definition:	Suspected dengue case-definition:	Criteria for severe dengue:
Sudden onset of fever over 38° C and Cough or sore throat, and dyspnea, and requiring hospitalization.	Sudden onset of fever, and at least two of the following manifestations: Malaise, Headache, Retro ocular pain, Myalgia / arthralgia, Rash, Anorexia, Nausea, History of spontaneous bleeding, Tourniquet test positive, Leukopenia.	Severe plasma leakage, or Severe bleeding, or Severe organ involvement.
	Or any of the warning signs: Sustained abdominal pain, Intense vomiting, Body fluid accumulation, Mucosal bleeding, Lethargy / irritability, Asthenia, Enlarged liver (greater than 2 cm), Increased hematocrit associated with a rapid decrease of platelet count within a 24 hour period).