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What are malaria symptoms and signs?
Malaria has a wide spectrum of symptoms. After the bite by the infected mosquito occurs, it can take between seven and 30 days before symptoms start.
Malaria is classified as uncomplicated or complicated (severe).
The most common symptoms are
fever and chills,
nausea and vomiting,
general weakness and body aches.
The classic description of a malaria attack (which is rarely observed), would be a six- to 12-hour period of cold and shivering alternating with fever and headaches and then a stage of sweating and tiredness (sometimes divided into the cold and hot stage).
As these symptoms are very nonspecific, it is important to evaluate if the patient has risk factors for malaria (usual travel in endemic areas).
Complicated or severe malaria
This occurs when different body systems are affected by malaria.
Severe anemia (due to destruction of red blood cells)
Cerebral malaria -- seizures, unconsciousness, abnormal behavior, or confusion
Low blood sugar (in pregnant women after treatment with quinine)