Any reported event in a vaccine recipient which:
• Does not have a temporal relationship with vaccine administration (i.e., does not
follow immunization);
• Has been clearly attributed to other causes;
• Is not within the scope of provincial AEFI surveillance (refer to section 2.1
Scope).
So 3rd reason if they can't explain it away with the 2nd reason
Any reported event in a vaccine recipient which: • Does not have a temporal relationship with vaccine administration (i.e., does not follow immunization); • Has been clearly attributed to other causes; • Is not within the scope of provincial AEFI surveillance (refer to section 2.1 Scope).
So 3rd reason if they can't explain it away with the 2nd reason