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Risk factors
By Mayo Clinic staffRisk factors for ascariasis include:
- Poor sanitation and the use of human feces as fertilizer. Ascariasis is more widespread in developing countries where human feces are allowed to mix with local soil. There, the eggs become infective and are capable of infecting people who eat produce grown in contaminated soil or otherwise ingest the eggs.
- Warm climate. Ascaris worms thrive in milder climates. In the United States, ascariasis is more common in the South. But it's more prevalent in developing countries with warm temperatures year-round.
