Malaria is a serious disease caused by parasites that are transmitted to humans through the bites of infected Anopheles mosquitoes. Symptoms typically include fever, chills, and flu-like illness. If not treated promptly, malaria can lead to severe complications and even death. The disease is prevalent in many tropical and subtropical regions, particularly in parts of Africa, Asia, and South America. Preventive measures include using insecticide-treated bed nets, indoor spraying, and taking antimalarial medications when traveling to high-risk areas. Vaccines are also being developed to help reduce the incidence of malaria.