This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Measles, Subject name: Social & Preventive Medicine
SSPE is caused by - 
Select and explain. 
A. Mumps, B. Measles, C. Rubella, D. Varicella
B: Measles
Answer: B: Measles 
Explanation: Ans. is 'b' i.e., Measles o Complications of measles arei) Respiratory ; Otitis media (most common complication), pneumonia (Giant cell or Hecht's pneumonia), bronchitis, laryngitis, croup.ii) CNS : These are most serious and include encephalitis, transverse myelitis and a rare complication SSPE (Subacute sclerosing panencephalitisj.iii) Gastrointestinal: Gastroentritis, hepatitis, appendicitis, diarrhea, ileocolitis, mesenteric adenitis.iv) Others : Myocarditis, glomerulonephritis, thrombocytopenia.