What is a vector in public health?

An organism that carries disease between hosts.

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  1. An organism that carries disease between hosts ✔
  2. A machine that cleans water
  3. A type of vaccine

Why: A vector is a living carrier, like an insect or rodent, that spreads disease.

Huh, didn't know that: A vector is a living carrier, like an insect or rodent, that spreads disease.

The dad joke
Vectors carry more than luggage.
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References

Answer: An organism that carries disease between hosts. A vector is a living carrier, like an insect or rodent, that spreads disease.

  1. Scouting America: Public Health www.scouting.org/merit-badges/public-health
    Explain what a vector is
    Checked 2026-11-07.

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