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 viruses cause a severe and often deadly illness known as Ebola virus disease (EVD; previously referred to as Ebola hemorrhagic fever). Fatality rates during EVD outbreaks can be as high as 90 percent.here are five subtypes of Ebola viruses: Zaire, Sudan, Bundibugyo, Tai Forest (formerly known as Cote cÃ´teâD), ivoire And, reston each named after the location in which it was first. Identified the first three subtypes have been associated with LARGE evd outbreaks In. africa