Elaura Dana L S Page

Ton projet est intéressant mais il n'y aucune erreur et aucune image! C'est dommage que ton projet ne soit pas plus "personnalisé" avec des textes rédigés par toi au lieu d'avoir été "copiés" sur un site ou rédigés par quelqu'un qui est bilangue!

Your mark is 12/20

Tes notes sont : 3/4 pts pour les questions sur la feuille distribuée en classe (Appuyez ici pour consulter la page en question) et 9/16 pour le projet (publié sur cette page)

The Ebola virus

The Ebola virus is an infectious agent. In humans and other primates, it often causes hemorrhagic fever. The Ebola virus is at the origin of a historic epidemic whose severity is remarkable. Interpersonal transmission occurs primarily through direct contact with bodily fluids. It is a single-strand RNA virus of negative polarity (mononuclear virus sequence) and of non-segmented genome (group V of the Baltimore classification). It presents the filamentous aspect characteristic of filamentous viruses and also belongs to the families of viruses Marburg, Lloviu (Cuevavirus) and MÄ›nglĂ  (Dianlovirus) .The genome of the Ebola virus is approximately 19 Kb in length and has seven genes which code for seven structural proteins and two other proteins secreted by polymerase inhibition: the capsid nucleoprotein NP, a cofactor of the viral polymerase VP35 The matrix principal of this protein is VP40, the glycoprotein GP, sGP and ssGP are derived from the GP gene, from the minor nuclear protein VP30, from the matrix protein VP24 and from RNA-dependent L5 RNA polymerase.

The diseases it produces have not yet been approved for treatment, and its death rate is 25% to 90% in humans. As of March 27, 2016, the 2014 and 2015 epidemic outbreaks in West Africa showed a fatality rate of 39.5%, with 11,323 deaths out of 28,646 confirmed cases.

After effective tests during the Guinea epidemic in 2015, the first batch of vaccines was announced in late 2016, and the vaccine was used for vaccination campaigns in West Africa in 2017 and in the Democratic Republic of Congo in 2019.

The Ebola virus infiltrates all organs and tissues except exercise bones and muscles. First, a small amount of disseminated blood clot forms in all blood vessels through disseminated intravascular coagulation, the mechanism of which is unclear. The blood clot then sticks to the wall of the blood vessel, forming a "sidewalk". The longer the infections continue, the more clots there will be, which will block the capillaries. Eventually, they become so much that they prevent blood from flowing to the various organs of the body. Then, parts of the brain, liver, kidneys, lungs, testes, skin, and intestines are necrotic because they lack oxygenated blood.

One of the characteristics of the Ebola virus is its brutality in the attack of the connective tissue. It also causes red spots called petechial spots due to subcutaneous bleeding. It affects collagen in the structure of the skin. The undercoat of the skin dies and liquefies, forming white and red bubbles called erythematous papules. At this point, the simple act of touching the skin is that it will tear when it softens. Viruses cause obvious inflammation, but some antiviral proteins seem to inhibit it, such as interferon.

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Ne pas supprimer SVP

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