how are carries harmful to us
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Female mosquitos bite humans to consume blood. In doing so they cause irritation and swelling. But can also transmit some extremely harmful fatal diseases.
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Carriers take with them many harmful microorganisms or pathogens. They play a great role in transferring these pathogens to a healthy person, by sitting on the food items, or directly transferring the pathogens inside the body of a person. Hence they are harmful to us.
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