Ebola Virus Disease ( Ebv )

1323 Words Nov 23rd, 2015 6 Pages
Ebola virus disease (EBV), or just Ebola, is an acute, often fatal illness, with a case fatality rate of up to 90%. It is one of a number of haemorrhagic fever diseases. Ebola is a single-stranded RNA virus with an unusual, variable-length, branched morphology. The helical capsid is enclosed inside a membrane.. It is one of the world’s most virulent diseases. The Ebola virus is a member of the Filoviridae family. There are 5 known subtypes of Ebola. The infection is transmitted by direct contact with the blood, body fluids and tissues of infected animals or people. The current hypothesis is that fruit bats are the original host of the virus. Ebola was introduced into the human population through close contact with the blood, secretions, organs or other bodily fluids of infected animals found ill or dead. The virus then transmits through humans via direct contact with contaminated body fluids.
Symptoms and Mechanisms of Infection-
When a person becomes infected with the Ebola virus, it can take from two up to 21 days before the first symptom show. The first stages of symptoms were sudden onset fever, intense weakness, muscles pain, sore throat and headaches. These are followed by diarrhoea, vomiting, abdominal pain, a rash and extremely impairing the organ system and internal and external bleeding.
These symptoms are caused by the virus attacking the immune system, aggressively killing the dendritic cells which play an important role in activating the T- lymphocyte cells.…
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