This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infectious disease, Subject name: Pediatrics
All of the following are features of mumps except _______ 
Select and explain. 
A. Caused by paramyxovirus, B. Aseptic meningitis is a complication, C. Orchitis is a complication in adults, D. Incubation period is less than 2 weeks
D: Incubation period is less than 2 weeks
Answer: D: Incubation period is less than 2 weeks 
Explanation: *Mumps is an acute viral infection characterised by painful enlargement of the salivary glands,most commonly the parotid glands.It is caused by an RNA virus of the genus paramyxovirus in the family paramyxoviridae. *It follows an incubation period of 2-4 weeks. Complications include epididymoorchitis in adolescent boys or postpubeal men.Aseptic meningitis is seen in 1-10% patients with parotitis.The risk of encephalitis is between 0.02-0.3% cases.Other neurological manifestations include deafness,cerebellar ataxia,facial neuritis,transverse myelitis and guillain barre syndrome. Reference: Essential pediatrics,op ghai, 9 edition,pg no: 213