Which is not true of Ascaris infection?

The correct option is D Infection is cured even without medication

• A large roundworm, Ascaris lumbricoides is the cause of a parasitic infection of the small intestines called ascariasis. Humans are the preferred hosts for this parasite. Children become infected with this disease more often than adults. The illness often develops after a child puts his hands in his mouth after playing in soil contaminated by feces containing the roundworm eggs. Eating unwashed fruit or vegetables that were grown in contaminated soil can also cause ascariasis. Although the infection can occur in any part of the world, it is more common in developing countries with poor sanitation and areas where human feces are used as fertilizer.
  
• People infected with Ascaris often show no symptoms. If symptoms do occur they can be light and include abdominal discomfort. Heavy infections can cause intestinal blockage and impair growth in children. Other symptoms such as cough are due to migration of the worms through the body. Ascariasis is treatable with medication prescribed by your health care provider.
  

So, the correct answer is 'Infection is cured even without medication'.