Vector-borne transmission refers to infections transmitted to humans by what means?

Vector-borne transmission refers to infections transmitted to humans by what means?

• A. Blood-feeding arthropods such as mosquitoes, ticks, and fleas
• B. Direct contact with an infected person
• C. Airborne particles
• D. Contaminated water

Answer: (A)

Vector-borne transmission refers to infections spread to humans by blood-feeding arthropods such as mosquitoes, ticks, and fleas. These vectors pick up pathogens from an infected source and transmit them to a new person when they bite. This mechanism requires a living intermediary to transfer the microorganism, which is why many diseases like malaria, dengue, Lyme disease, and plague rely on a vector. In contrast, diseases spread by direct contact occur through touching or bodily fluids with an infected person, airborne diseases spread via inhaled droplets or aerosols, and diseases from contaminated water are acquired by ingestion. So the defining feature is transmission via biting arthropods that carry the pathogen.

Vector-borne transmission refers to infections spread to humans by blood-feeding arthropods such as mosquitoes, ticks, and fleas. These vectors pick up pathogens from an infected source and transmit them to a new person when they bite. This mechanism requires a living intermediary to transfer the microorganism, which is why many diseases like malaria, dengue, Lyme disease, and plague rely on a vector. In contrast, diseases spread by direct contact occur through touching or bodily fluids with an infected person, airborne diseases spread via inhaled droplets or aerosols, and diseases from contaminated water are acquired by ingestion. So the defining feature is transmission via biting arthropods that carry the pathogen.