Which viral infection is characterized by 'Warthin-Finkeldey' multinucleated giant cells in lymphoid tissue?
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Correct answer: Measles virus (Rubeola)
Warthin-Finkeldey cells are large multinucleated giant cells with up to 100 nuclei and eosinophilic inclusions in both the nucleus and cytoplasm. They are typically found in the tonsils and lymph nodes during the prodromal phase of Measles.
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