This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
[{'content': 'Brazilian purpuric fever is caused by? \nSelect and explain. \nA. Haemophilus haemolyticus, B. Haemophilus aphrophilus, C. Haemophilus aegyptius, D. Haemophilus parainfluenzae', 'role': 'user'}, {'content': "Answer: C \nExplanation: Brazilian purpuric fever is caused by Haemophilus aegyptius. It is characterised by conjunctivitis which proceeds to fulminant septicemia in infants and children. There is high fatality. It was first recognized in Brazil in 1984. Ref: Ananthanarayan and Paniker's Textbook of Microbiology, 9th edition, p330,331.", 'role': 'assistant'}]