Figure 4-3. World events and malaria cases in the United States.
It is possible to have serious complications of malaria. People who have had
repeated malaria attacks with inadequate treatment may experience the following:
headache, convulsions, delirium, and coma. Other symptoms include hyperpyrexia,
closely resembling heat hyperpyrexia, and gastrointestinal disorders similar to cholera
or acute bacillary dysentery. People who have had falciparum infections and a history
of irregular quinine dosage may have anemia, jaundice, fever, and hemoglobinuria.
Relapses are common and may occur at irregular intervals for several years.