This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Considerations - Infectious Diseases, Subject name: Pediatrics
Warthin Finkeldey giant cells are seen in: 
Select and explain. 
A. Mumps, B. Rubella, C. Measles, D. Polio
C: Measles
Answer: C: Measles 
Explanation: c. Measles(Ref: Nelson's 20/e p 1542-1547, Ghai 8/e p 213-214)Fusion of infected cells results in multinucleated giant cells, the Warthin-Finkeldey giant cells that are pathognomonic for measles, with up to 100 nuclei and intracytoplasmic and intranuclear inclusions.