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 _______ are the agents that act as carriers of a pathogen and spread diseases.

  • A.Vectors
  • B.Microbes
  • C.Parasites
  • D.DNA

Answer: A

Correct answer: Vectors

A vector is an organism - usually an insect - that carries a pathogen from one host to another: the Anopheles mosquito for malaria, Aedes for dengue, the housefly for typhoid. Controlling the vector is often easier than treating the disease.

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