Knowledge of early signs of shock and warning signs for severe dengue, how to make laboratory diagnosis and reported criteria for referral to hospital.*

* Percentages incorporate survey design weights, and thus may not equal the crude proportions. Fewer than 12% of respondents failed to answer any individual question; the denominator includes only those who answered the question in order to give the most conservative estimate.†1997 WHO case definition defined dengue as an acute febrile illness of 2 to 7 days duration with 2 or more of the following: headache, retro-orbital pain, myalgia, arthralgia, rash, hemorrhagic manifestations, leucopenia. Warning signs include: severe abdominal pain, persistent vomiting, cold and clammy skin/extremities, narrowing pulse pressure, hypotension, change in mental status (e.g., irritability, lethargy).Knowledge of early signs of shock and warning signs for severe dengue, how to make laboratory diagnosis and reported criteria for referral to hospital.*