No, threadworms only infect humans and are not spread in animal faeces. Their eggs however, can stick to animal fur if touched by someone who is infected. This can then be spread to be other peoples hands from touching or stroking the pet.

Yes, although it is more common in children, people of any age can catch threadworms.

If you suspect threadworms and you are pregnant or breastfeeding, or if you think your child, who is under two years of age, has threadworms then it is necessary to consult a GP prior to treatment. The treatment in these cases can differ from what is recommended for other people.

No, there is no need to keep children off school if they have a threadworm infection. It is likely that other children in the school already have threadworm so the best approach is to inform the teachers and ensure the school is enforcing a good hygiene approach with all children.

Not treating threadworms is unlikely to lead to any serious consequences, although there are more severe symptoms as detailed above. The symptoms of threadworms such as anal itching, and the subsequent sleep disturbance, can often be difficult to live with and will persist if the infection is not treated.