Charlotte recently went to a doctor. The doctor told her she has anemia, meaning she has very low blood oxygen. The doctor did further tests that showed she also has swelling in her brain.Which disease does she most likely have?

Malaria is the most likely choice. Severe malaria can cause anemia by destroying red blood cells, reducing the blood’s ability to carry oxygen, and it can also affect the brain and cause swelling. A common cold, Parkinson’s disease, and diabetes do not typically cause this combination of findings.

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