Leishmania

Leishmania is a tiny parasite that causes leishmaniasis, an infectious disease transmitted by the bite of infected sandflies. Once inside the human body, the parasite invades certain immune cells, potentially leading to skin sores, or more severe forms affecting internal organs like the liver and spleen. Symptoms vary depending on the type but can include ulcers, fever, and weight loss. The disease is common in tropical and subtropical regions. Treatment often involves specific medications, and prevention focuses on protecting against sandfly bites through insect repellent, bed nets, and habitat control.