PATHOLOGY

Detailed explanation-1: -Vectors are living organisms that can transmit infectious pathogens between humans, or from animals to humans. Vector-borne diseases are human illnesses caused by parasites, viruses and bacteria that are transmitted by vectors. More items •02-Mar-2020

Detailed explanation-2: -Vectors such as mosquitoes, fleas, and ticks may carry an infectious agent through purely mechanical means or may support growth or changes in the agent. Examples of mechanical transmission are flies carrying Shigella on their appendages and fleas carrying Yersinia pestis, the causative agent of plague, in their gut.

Detailed explanation-3: -Vector transmission utilizes insects to transport the pathogen. Insects such as fleas, ticks, and mosquitos are unharmed by the pathogens they potentially carry but can transmit the bacteria or virus when they bite a host. Examples: Mosquito: West Nile Virus.