Table. Interplay of indicator-based and event-based surveillance at EU/EEA level.

Objective	Indicator-based surveillance		Event-based surveillance
	Epidemiological	Genomic	EU/EEA country reporting	ECDC epidemic intelligence
Monitor:       − Disease burden       − Strain distribution       − Long-term trend       − Risk groups       − Prevention and control programmes	X	X	NA	NA
Threat detection, monitoring and assessment	X	X	X	X
Global threat monitoring and assessment	NA	NA	NA	X

ECDC: European Centre for Disease Prevention and Control; EEA: European Economic Area; EU: European Union; NA: not applicable.