Biology · Human Diseases
Identify the correct chronological sequence in the chain of infection for the spread of a communicable disease: A. Portal of Exit B. Reservoir C. Mode of Transmission D. Susceptible Host
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1B → C → A → D
- 2C → B → A → D
- 3A → B → C → D
- 4B → A → C → D✓
Correct answer
B → A → C → D
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