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प्रश्न
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
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उत्तर
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.
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