system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Giant cell (Hecht's) pneumonia is due to -
assistant
The correct answer is  Most patients recover uneventfully but quite a few develop complication which may be due to virus or secondary bacterial infection. Rarely the virus may cause fatal giant cell pneumonia. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:512