Is the event unusual or unexpected	II. Is the event unusual or unexpected?	
	4. Is the event unusual?	
	 THE FOLLOWING ARE EXAMPLES OF UNUSUAL EVENTS:	
	– The event is caused by an unknown agent or the source, vehicle, route of transmission is unusual or  unknown.	
	– Evolution of cases more severe than expected (including morbidity or case-fatality) or with unusual  symptoms.	
	– Occurrence of the event itself unusual for the area, season or population.	
	5. Is the event unexpected from a public health perspective?	
	 THE FOLLOWING ARE EXAMPLES OF UNEXPECTED EVENTS:	
	– Event caused by a disease/agent that had already been eliminated or eradicated from the State Party  or not previously reported.	
	IS THE EVENT UNUSUAL OR UNEXPECTED?	
	Answer “yes” if you have answered “yes” to questions 4 or 5 above.