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Question

# Optimum temperature for the development of Ascaris is85oC100oC37oC20oC

A
100oC
B
20oC
C
85oC
D
37oC
Solution
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#### Ascaris lumbricoides (roundworm) is the most important soil-transmitted helminth pathogenic to man. The optimum temperature for the development of Ascaris is 20-25oC. Eggs do not survive direct heat, desiccation and sunlight. Therefore, the correct answer is option D.

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