A type of falciparum malaria with gastrointestinal manifestations predominating: Algid malaria is characterized by cold, clammy skin, and hypotension.

Falciparum malaria is characterized by paroxysms of fever occurring at irregular intervals and often by the localization of the organism in a specific organ, causing capillary blockage in the brain, lungs, intestinal mucosa, spleen, and kidneys.