La Crosse Encephalitis (LAC) Lassa Fever LCM (Lymphocytic Choriomeningitis) Legionnaires’ Disease [Legionellosis] Leishmania Infection [Leishmaniasis] Leprosy Lockjaw — see Tetanus Disease Lou Gehrig’s Disease — see ALS LUHF (Lujo Hemorrhagic Fever) Lupus (SLE) [Systemic lupus erythematosus] Lyme Disease [Borrelia burgdorferi Infection] Lymphatic Filariasis Lymphedema