SUBDUCTION ZONES and ISLAND ARCS. Subduction Zones are where cool lithospheric plates sink back into the mantle. It takes about 50 my for the ocean lithosphere that formed in the hot (>1000C) environment at mid-ocean ridges to cool to an equilibrium state and sink to its maximum depth below sea-level.
Ebola hemorrhagic fever is a viral disease caused by Ebola virus that results in nonspecific symptoms (see symptom section of this article) early in the disease and often causes internal and external hemorrhage (bleeding) as the disease progresses.
Ebola virus disease. Ebola is a deadly disease that causes hemorrhagic fever in humans and animals and is spread through direct contact with the blood, body fluids or tissues of infected person. Hand, foot and mouth disease. Hand, foot and mouth disease is a common viral illness that mainly affects infants and children.