Prevention
Prevention of zoonotic trichuriasis depends on the
treatment and prevention of Trichuris infections in animals,
the removal of feces before the eggs can become
embryonated, good hygiene and public education.
To reduce human exposure, infected dogs should be
dewormed. Canine feces should be removed from areas
where children play before the eggs become embryonated.
There is no practical way to remove parasite eggs from the
soil once contamination has occurred; however, Trichuris
eggs are less likely to survive and develop in drier, sunnier
locations. Lawns where dogs defecate should be kept short,
to reduce shade on the soil, and should not be overwatered.
Contamination can be decreased in public areas by
restrictions on uncontrolled dogs, collection of feces by dog
owners, and prevention of animal access to areas such as
children’s playgrounds.
Good hygiene can help prevent infections or severe
disease. Hands and raw foods should be washed before
eating. Unsafe drinking water should be boiled or filtered.
Children should be taught not to eat soil, and to wash their
hands after playing with pets or outdoor activities. Children
should not be allowed to play in areas where animal feces are
found. Families may also consider postponing the acquisition
of a new pet until children are past the toddler stage.