👉 Malarial disease is a parasitic infection that affects the brain and other organs in people who have been bitten by an infected mosquito. It can cause various symptoms such as headaches, joint pain, nausea, vomiting, fever, muscle aches, and blindness. The exact causes of malaria are not fully understood, but it is thought to be caused by a roundworm parasite called Plasmodium falciparum. Treatment for malaria includes服用抗疟疾药物,如伯氨喹