Virus Ebola

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Imagago microscopic del virus Ebola

Le Virus Ebola es un virus vehemente periculose. Ille pertenece ad familia Filoviridae et es responsible pro morbo sever qualificate per subito initio de febre hemorrhagic accompaniate per altere signos e symptomas non specifico. "Hemorrhagic" significa que le victima sanguina copia, intra et extra lor corpore. Le virus assaltar quassi quoti organo e texito del corpore human resultante in dysfunction in pure organos. Illo es trovate in Africa, con multe poc casos in Europa e le Statos Unite.

Secun le Organisation Mundial pro le Sanitate (www.who.int/news-room/fact-sheets/detail/ebola-virus-disease): le rata de mortalitate es approximatemente 50% in general ma varia in differente epidemias inter 25% e 90%; il ha cinque species in le genere Ebolavirus e tres de illos era associate con grande epidemias de Ebola; e le virus prime ha apparate in 1976 in duo epidemics simultanee, uno in le Republica Democratic del Congo in un village proxime al Riviera Ebola, del qual le nomine del virus veni) e le altere in un region que hodie es in le Sudan del Sud. [1]

Transmission[modificar | modificar fonte]

Un animation 3D de virus ebola.
Un video explanation simple de Ebola virus

Le virus Ebola que face le gente malade vive in le sanguine e le alter liquidos e molliate cosas in animales sin le occidente. Scientististas pensa que le animales in ubi les vive majore son o pteropodidaes. Quando le gente tocca animales que habe le virus, o cosas molliate que sorti ex celles animales, illes pote esser malade.[2]

The Ebola virus that makes people sick lives in the blood and other liquids and wet things in some kinds of non-human animals without killing them. Scientists think the animals it lives in are mainly some kinds of monkeys or fruit bats. When people touch animals that have the virus, or wet things that came out of those animals, they can get sick.[2]

Life cycles of the Ebolavirus

Ebola cannot be caught through the air, or by being near sick people.[3] The virus can only go from liquids into people's bodies. This means Ebola can be caught by touching a sick person's blood, saliva, mucus, semen, diarrhea, vomit, or other fluids that come out of a sick person's body.

If a person does not die from the disease, he can still give other people the infection by having sex for nearly another two months after they stop being sick. This is because the virus can still be in the man's semen after a long time.

1. Once the virus enters the human body via mucosal surfaces, abrasions or injuries in the skin or by direct parental transmission, it fuses with the cells lining the respiratory tract, eyes, or body cavities.

2. It invades the macrophages and dendritic immune cells and releases its genetic content. The cell explosion triggers the secretion of proinflammatory cytokines initiating a ‘cytokine storm’. The genetic material takes over the cell machinery to replicate itself; new copies of the virus are formed and released into the system.

3. The virus then, goes on to attack spleen, kidneys and even the brain. The blood vessels leak blood and fluid into the surrounding tissues. This atypical clotting and bleeding at the same time manifests externally in the form of rashes.

4. The virus causes the shutdown of other vital organs such as liver and lungs too. In fact, it is able to invade almost all human cells through different attachment mechanisms for each cell type (except for lymphocytes). The very cells that are meant to fight infection are used as carriers to spread infection to other body parts

5. It has been found that the ebola-infected cells do not undergo normal apoptosis, but exhibit vacuolization and signs of necrosis.

Symptoms[modificar | modificar fonte]

When people get Ebola the first symptoms look like some other diseases. People get a fever and feel very tired. Their head, stomach, joints, and throat might hurt. Sometimes, people think they have other diseases like malaria or typhoid fever.

Later, people get much sicker. They bleed both inside and outside their bodies. They have blood in their diarrhea and vomit. They bleed from their noses, mouths, and genitals/sex organs. They get shock: low blood pressure, fast pulse (heart rate), and low blood circulation to the body. Their organs might stop working. Ebola also causes stiffness throughout the body which makes it hard for sick people to move.

Five to nine out of every ten people who get sick with Ebola die.

Treatment[modificar | modificar fonte]

There is no cure for Ebola, but if people get care quickly from doctors and nurses at a hospital, more of them live. People with Ebola need a lot of fluids to replace fluids lost from diarrhea, vomiting, and bleeding. The most important care is giving them water with a very small amount of salt and sugar in it. This is called oral rehydration. It helps to replace their fluids and blood. It is also important to give medicines in case they get bad blood pressure and blood circulation.

Prevention[modificar | modificar fonte]

In December 2016, a study found the VSV-EBOV vaccine to be very effective (in the neighborhood of 70–100%) against the Ebola virus, making it the first vaccine against the disease.

Many Ebola vaccine candidates had been developed in the decade prior to 2014, but as of October 2014, none had yet been approved by the United States Food and Drug Administration (FDA) for use in humans.

Research[modificar | modificar fonte]

World Community Grid is a computing project that is seeking possible drug treatments. People donate the spare time on their computers to the project.

Reference[modificar | modificar fonte]

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Wikimedia Commons ha files multimedia de: Ebola virus
  1. "Ebola virus antibodies in fruit bats, Bangladesh" (2013). Emerging Infectious Disease 19 (2). CDC. doi:10.3201/eid1902.120524. 
  2. 2,0 2,1 Ebola virus disease Fact sheet N°103. World Health Organization (March 2014). Recuperate le 12 April 2014.
  3. 2014 Ebola virus disease (EVD) outbreak in West Africa (April 21 2014). Recuperate le 3 August 2014.