ASCP Phlebotomy Technician Certification Practice Exam 2025 - Free Phlebotomy Practice Questions and Study Guide

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What is an example of a vector in the transmission of infectious diseases?

Bacteria

Mites

The correct answer is mites, which serve as vectors in the transmission of infectious diseases. A vector is typically defined as an organism that does not cause disease itself but spreads infection by conveying pathogens from one host to another. Mites, particularly certain species, can act as arthropod vectors that carry pathogens such as viruses, bacteria, or other parasites, facilitating their transmission to human hosts or animals.

In contrast, bacteria, viruses, and fungi are all types of pathogens, meaning they can cause disease directly. While they may be involved in disease transmission, they do so as the entities that lead to infection rather than as vectors. Mites play a crucial intermediary role, making them a prime example of a vector in this context. Understanding the role of various organisms in the infection cycle is essential for developing effective disease control and prevention strategies.

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Viruses

Fungi

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