Filarial larva can be collected from man's

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(B) $Wuchereria bancrofti$ is a human parasitic roundworm that causes filariasis. The microfilariae are found mainly in the peripheral blood and can b

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Peripheral blood at midnight

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(B) $Wuchereria bancrofti$ is a human parasitic roundworm that causes filariasis. The microfilariae are found mainly in the peripheral blood and can be found at peak amounts from $10 pm$ to $4 am$. They migrate between the deep and the peripheral circulation, exhibiting unique diurnal periodicity. During the day, they are present in the deep veins, and during the night, they migrate to the peripheral circulation. Therefore, to collect the filarial larvae, the peripheral blood should be collected during the night.

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