Arrange the following steps in sequence for Ascaris infection in humans :

(A) Development of round worms in human host
(B) Excretion of parasite eggs along with the feces of infected person resulting in soil and water contamination
(C) Infection of healthy person via contaminated water, vegetables, fruits etc.
(D) Muscular pain, fever, blockage of intestinal passage

Choose the correct answer from the options given below:

(C), (A), (D), (B)

The correct answer is Option (3) → (C), (A), (D), (B)

(C) Infection of healthy person via contaminated water, vegetables, fruits etc.

(A) Development of round worms in human host

(D) Muscular pain, fever, blockage of intestinal passage

(B) Excretion of parasite eggs along with the feces of infected person resulting in soil and water contamination

Ascaris, the common round worm and Wuchereria, the filarial worm, are some of the helminths which are known to be pathogenic to man. Ascaris, an intestinal parasite causes ascariasis. Symptoms of these disease include internal bleeding, muscular pain, fever, anemia and blockage of the intestinal passage. The eggs of the parasite are excreted along with the faeces of infected persons which contaminate soil, water, plants, etc. A healthy person acquires this infection through contaminated water, vegetables, fruits, etc.