Malaria is a serious and potentially life-threatening disease caused by Plasmodium parasites, which are transmitted to humans through the bites of infected female Anopheles mosquitoes. There are several species of Plasmodium, but the four main ones that cause malaria in humans are Plasmodium falciparum, Plasmodium vivax, Plasmodium ovale, and Plasmodium malariae. Symptoms of Malaria Symptoms of malaria typically appear 10 to 15 days after the mosquito bite (though it can take longer). The disease progresses in stages, and the severity of symptoms can vary based on the type of Plasmodium and the individual’s immune system. Common symptoms include: Fever: Often a high, intermittent fever. Chills: Severe chills and shaking, which may be followed by a high fever. Sweating: After the fever spikes, the person may experience sweating. Headache: A constant, often severe headache. Fatigue: Feeling very weak or tired, sometimes to the point of exhaustion. Nausea and Vomiting: These can occ...