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Risk factors
By Mayo Clinic staffPeople who have little or no immunity to malaria are most at risk for serious illness. Residents of a malaria region may acquire some immunity to the disease during their lifetime, but those who haven't yet acquired immunity are at risk. People at increased risk for serious disease include:
- Young children and infants
- Travelers coming from areas with no malaria
- Pregnant women and their unborn children
Poverty, lack of knowledge, and little or no access to health care also contribute to malaria deaths worldwide.
It's also possible to lose your immunity if you're no longer frequently exposed to the parasite. So even if you've previously lived in a region where malaria exists, take antimalarial precautions if you return to such an area after an extended period away.
