Malaria is a mosquito-borne infectious disease caused by Plasmodium parasites. Symptoms include fever, shivering, joint pain, vomiting, and anemia. It is treated through supportive measures and antimalarial drugs, though herbal remedies are also used. Malaria affects tropical and subtropical regions worldwide, putting over 3 billion people at risk with approximately 250 million cases and nearly 1 million deaths annually, especially impacting children in Africa.