A student is investigating how disease spreads in a population. Which term describes an organism that carries and transmits a pathogen without necessarily being harmed by it?

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Question

A student is investigating how disease spreads in a population. Which term describes an organism that carries and transmits a pathogen without necessarily being harmed by it?

Accepted Answer

A vector — A vector is an organism that transmits a pathogen from one host to another, for example the mosquito transmitting the malaria protist. While 'carrier' is sometimes used informally, in the AQA specification the term 'vector' specifically refers to organisms like insects that spread disease.

Answer

A carrier

Answer

A vector

Answer

A host

Answer

A reservoir

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