Which of the following best describes a vector?

The best description of a vector is an organism that transfers a disease from one host to another. In the context of disease transmission, vectors play a crucial role as they facilitate the spread of infectious agents, such as bacteria, viruses, or parasites, without being affected by the disease themselves. Common examples of vectors include mosquitoes, ticks, and fleas, which can carry and transmit diseases to humans or other animals through their bites. Understanding the role of vectors is essential in animal control and public health, as it helps in implementing strategies to prevent disease outbreaks by controlling vector populations and minimizing human or animal exposure to them.