But medical information is always changing, and some information given here may be out of date. For regularly updated information on a variety of health topics, please visit familydoctor.org , the AAFP patient education Web site. An article on this topic is available in this issue of AFP .
Malaria is an infection that causes high fevers and shaking chills.
It's spread by a mosquito that feeds at night. If this mosquito bites you, the bug can get into your blood. The bug turns into many bugs, and they feed on your blood cells until you get very sick. Some people even die from malaria. Malaria is a big health problem in many tropical countries.