Question: within the chain of infection the disease producing agent is referred to as
[{'answer': 'Infectious disease', 'provenance': [{'wikipedia_id': '37220', 'title': 'Infection', 'start_paragraph_id': 1, 'start_character': 192, 'end_paragraph_id': 1, 'end_character': 210, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '37220', 'title': 'Infection', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 311, 'bleu_score': 0.957870874785216, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1788108672418796119}, 'section': 'Section::::Abstract.'}]}]