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As well as treating roundworm infections with medicine, the infection can be controlled by improving sanitation and health education.

Although treatments are usually effective, preventing roundworm infections that affect tropical countries is very challenging.

Infection control

Good hand hygiene can help prevent the spread of roundworm.

Always wash your hands thoroughly:

Travel advice

You'll need to take extra precautions when travelling to parts of the world where it's hot, there's poor sanitation, and roundworm is widespread.

Places where roundworm is particularly widespread include:

If you're travelling to these parts of the world, you should:

Read more about travel health and food and water abroad.