This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunization, Subject name: Pediatrics
[{'content': 'An event that is caused by an error in vaccine preparation, handling, or administration is called as: \nSelect and explain. \nA. Coincidental event, B. Injection reaction, C. Vaccine reaction, D. Programme error', 'role': 'user'}, {'content': "Answer: D \nExplanation: d. Programme error(Ref: IAP Guidebook on immunization 2013-14/p 89)Event caused by an error in vaccine preparation, handling, or administration is called a 'Programme error', e.g. deaths following measles vaccination due to toxic shock syndrome resulting from improper reconstitution & storage of measles vaccine.", 'role': 'assistant'}]