Infection controlQuestion 192 of 1700

Which is one link in the chain of infection?

  1. Portal of entry
  2. Portal of recovery
  3. Mode of cleaning
  4. Sterile field
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Correct answer: Portal of entry

The six links are infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host.

Source: Nursing Assistant (Reuter), 4.2: Chain of Infection

Practice infection control

Questions last reviewed: 18 October 2026