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Question

Which one of the following life cycle stages of Wuchererio boncrofti is infective to man?

A
Microfilaria
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B
1st stage larva
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C
2nd stage larva
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D
3rd stage larva
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Solution

The correct option is A 3rd stage larva
During a blood meal, an infected mosquito introduces third-stage filarial larvae onto the skin of the human host, where they penetrate into the bite wound. They develop in adults that commonly reside in the lymphatics.

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