Infection of Ascaris usually occurs by

Options

A. drinking water containing egg of Ascaris
B. eating imperfectly cooked pork
C. tse-tse fly
D. mosquito bite

Answer

A

Explanation

Infection of Ascaris occurs in a healthy person due to the contaminated water, vegetables, (raw or uncooked) fruits, etc. Mosquitos bite causes malaria due to the entry to Plasmodium parasite into the blood by mosquito. Eating imperfectly cooked pork causes trichinosis disease (parasitic disease). Tse-tse fly causes trypanosomiasis, an infection of the central nervous system.