Mention the causative agent and means of spread of malaria. Also describe symptoms, diagnosis, treatment and preventive measures of malaria. (UPSC 2024, 20 Marks, )

मलेरिया के कारण कारक और प्रसार के साधनों का उल्लेख करें। मलेरिया के लक्षण, निदान, उपचार और रोकथाम के उपायों का भी वर्णन करें। (Mention the causative agent and means of spread of malaria. Also describe symptoms, diagnosis, treatment and preventive measures of malaria.)