Here's why:
* Vectors are living organisms that can transmit infectious diseases between humans or from animals to humans.
* Arthropods are a group of invertebrates with jointed legs and a segmented body.
Common arthropod vectors include:
* Mosquitoes: Transmit diseases like malaria, dengue fever, Zika virus, West Nile virus, and yellow fever.
* Ticks: Carry Lyme disease, Rocky Mountain spotted fever, and ehrlichiosis.
* Fleas: Spread plague and typhus.
* Lice: Transmit typhus and relapsing fever.
* Flies: Can spread diseases like African trypanosomiasis (sleeping sickness), leishmaniasis, and river blindness.
While other animals can act as vectors (like rodents carrying plague), arthropods are the most significant group due to their prevalence and ability to transmit a wide range of diseases.