This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Influenza, Subject name: Social & Preventive Medicine
[{'content': 'Shortest incubation period - \nSelect and explain. \nA. Pertusis, B. Influenza, C. Diphtheria, D. Measles', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Influenza Respiratory tract infectionsDiseaseCausative organismIncubation periodSmall poxVariola virus7-14 daysChicken poxHuman (alpha) herpes virus314-16 daysMeasles (Rubeolla)RNA paramyxovirus10-14 daysRubella (German Measles)RNA Togavirus14-21 daysMumpsRNA Myxovirus14-18 daysInfluenzaOrthomyxovirus18-72 hoursDiphtheriaCorynebacterium diphtheriae2-6 daysPertussis (Whooping cough)Bordetella pertussis7-14 daysMeningococcal meningitisNeisseria meningitis3-4 daysSARSCorona virus3-5 daysTuberculosisMycobacterium tuberculosisWeeks-years", 'role': 'assistant'}]