New predominant serotype introduced
|
+++
|
Most countries
|
+++
|
Changes in age group distribution
|
++
|
Most countries
|
+++
|
Increased number of hospitalised/outpatient fever cases/probable dengue*
|
+++
|
Most countries
|
+++
|
Increase in vector presence
|
++
|
Most countries
|
+++
|
Increase in news reporting dengue outbreaks, social network comments
|
+
|
Few countries
|
++++
|
Climate changes: increase in rainfall/temperature/humidity
|
++
|
Most countries
|
+++
|
Increase in % positive serology*
|
++++
|
Most countries
|
+
|
Increase internal displacement/population mobility
|
+
|
Context dependent
|
++++
|
Cluster identified through GIS mapping
|
++
|
Few countries
|
++
|
Identification of outbreak in a neighboring geographical unit (state, district, province, country)*
|
++++
|
Most countries
|
++
|