General Knowledge · Public Health
What is the correct biological sequence of the 'chain of infection'?
- 1Portal of entry → Infectious agent → Susceptible host → Mode of transmission → Portal of exit → Reservoir
- 2Reservoir → Portal of entry → Mode of transmission → Portal of exit → Susceptible host → Infectious agent
- 3Portal of exit → Mode of transmission → Infectious agent → Reservoir → Susceptible host → Portal of entry
- 4Infectious agent → Reservoir → Portal of exit → Mode of transmission → Portal of entry → Susceptible host✓
Correct answer
Infectious agent → Reservoir → Portal of exit → Mode of transmission → Portal of entry → Susceptible host
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