This document summarizes several parasitic infections that can affect the central nervous system. It discusses the epidemiology, life cycle, clinical manifestations, pathogenesis, pathology, and diagnosis of cerebral malaria caused by Plasmodium falciparum and Plasmodium vivax parasites, toxoplasmosis caused by Toxoplasma gondii, and human African trypanosomiasis caused by Trypanosoma brucei. Cerebral malaria presents with seizures, confusion, and coma and is caused by parasite sequestration in brain blood vessels. Toxoplasmosis commonly causes encephalitis in immunocompromised individuals and congenital infections. Trypanosomiasis involves chronic meningitis and