Children typically harbor the highest intensity of infection. The infection can be transmitted from the eggs of worms present in human feces which contaminate soil in areas with poor sanitation. Transmission can occur by drinking contaminated water or by eating contaminated vegetables and fruits without washing or peeling. Your child may also get infected by playing in the soil that is contaminated with the eggs of the worms. When your child returns home after playing, ask them to clean up using soap and water.