This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Brazilian purpuric fever is caused by: 
Select and explain. 
A. Bordetella peussis, B. Haemophilus aegypticus, C. Haemophilus duceryi, D. Haemophilus parinfluenzae
B: Haemophilus aegypticus
Answer: B: Haemophilus aegypticus 
Explanation: Ans. is. 'b' i. e., Haemophilus aegypticus