What preventive measures can help prevent diseases caused by parasitic roundworms?

Diseases caused by parasitic roundworms are often referred to as dirty hand diseases.
Basic rules for the prevention of these diseases:
– wash your hands before eating, coming from the street, after using the toilet;
– wash hands after contact with animals;
– do not eat unwashed vegetables and fruits, wash them under running water;
– do not drink raw water;
– regularly carry out wet cleaning of premises;
– protect food from flies;
– regularly undergo examinations for the presence of roundworm eggs.