A 34 years old person has rapidly developing cough, dyspnoea, expectoration and blood tinged sputum. He is febrile, cyanosed, and toxic. Chest examination reveals crepitations and ronchi. The mostlikely diagnosis is:: (A) Legionella, (B) Pneumonic plague, (C) Septicemic plague, (D) Pulmonary tuberculosis
Answer is B. Pneumonic plague