List the symptoms of ascariasis. How does a healthy person acquire this infection?

The symptoms of Ascariasis are: Abdominal discomfort like colic pains, Diarrhoea, Vomiting, Indigestion. Infection is transmitted by the pollution of soil, water, vegetables. This disease is more common in children because they are in the habit of eating soil and clay which may be infected by the eggs of Ascaris.