Question

Ascaris lumbricoides infection occurs through:

• A. Sole of uncovered feet
• B. Contaminated cooked measly pork
• C. Improperly cooked measly pork
• D. From air through inhalation

Answer 1

The correct option is B Contaminated cooked measly pork

Ascaris enters into the human by eating semi-cooked (improperly) cooked pork contaminated with Ascaris.
A. lumbricoides lives in the intestine where it lays eggs. Infection occurs when the eggs, too small to be seen by the unaided eye, are eaten. The eggs hatch in the intestines, burrow through the gut wall, and migrate to the lungs via the blood. There they break into the alveoli and pass up the trachea, where they are coughed up and may be swallowed.