A condition in humans in which the immune system begins to fail, leading to life-threatening opportunistic infections

An infective disease caused by sporozoan parasites that are transmitted through the bite of an infected Anopheles mosquito; marked by chills and fever

tumors of the lymphatic system, which usually occur in the head and neck

an illness caused by a virus, transmitted by the bite of a mosquito, which cases a high fever, bleeding into the skin, and death of cells in the kidney and liver