Question

Vectors can be defined as

विकल्प

• animals carry the infecting agents from a sick person to another healthy person

• microorganisms which cause many diseases

• infected person

• diseased plants

Answer 1

microorganisms which cause many diseases

Explanation:

Vectors are living organisms that transmit infectious diseases from animals to humans or from humans to humans, without themselves being affected by the disease. Mosquitoes are the blood-sucking insects that ingest disease-producing microorganisms during a blood meal from an infected host (human or animal) and later inject it into a new host during their subsequent blood meal. Mosquitoes are the vectors for a large number of diseases such as dengue, malaria, filariasis, brain fever, chikungunya, yellow fever, etc.