Ebola Virus

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by mayiquecynthia
Last updated 7 years ago

Discipline:
Health & Fitness
Subject:
Health
Grade:
11

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Ebola Virus

Virus SpeciesEbolavirus (EBOV)Disease Ebola hemorrhagic fever (EHF) consists of 5 species:1. Zaire ebolavirus (EBOV)2. Sudan ebolavirus (SUDV)3. Taï Forest ebolavirus (TAFV), 4. Reston ebolavirus (RESTV)5. Bundibugyo ebolavirus (BDBV)

EbolavirusDesigned by:Cecilia Li

Ebolavirus under a electronic microscope

Ebola outbreaks occur primarily in remote villages in Central and West Africa, near tropical rainforests.

OutbreaksEbola virus was first discovered in 1976 when two outbreaks had happened in Sudan and in Democratic Republic of Congo almost simultaneously. There has been numerous outbreaks of the disease since 1976, affecting multiple African countries in West and central Africa. The 2014 Ebola outbreak in Guinea is one of the largest Ebola outbreaks in history.

Structure of Ebolavirus:Ebola virus is belongs to the family of Filoviridae. The ebola virus may vary in terms of their shape and size. They may be in the form of a coil, circle, and branch or may also appear in the form of a U or a 6. By size they are generally 80 nm in diameter but may extend from 800 to 1000 nm in several cases. The virions are surrounded by a bilayer of lipid molecules that anchor and protect the glycoprotein projecting long spikes from its surface which are usually 7 to 10 nm long. This outer layer of the virion is called the envelope. Within the virions are bound the nucleocapsids, which are usually 80 nm in size and contain genomic The true structure of ebola virus can be obtained with the help of electron micrographs.

Symptoms:Symptoms show up 2 to 21 days after infection and usually include:-High fever.-Headache.-Joint and muscle aches.-Sore throat.-Weakness.-Stomach pain.-Lack of appetite-External and internal bleeding may happen

Severely ill patients require intensive supportive care.

Trasmission and Treatment:Ebola Hemorrhagic Fever spreads to people by contact with the skin or bodily fluids of an infected animal, like a monkey, chimp, or fruit bat. Then, it moves from person to person the same way. Other ways to contact Ebola disease include touching contaminated needles or surfaces. As the virus spreads through the body, it damages the immune system and organs. Ultimately, it causes levels of blood-clotting cells to drop and organ failure. This leads to severe, uncontrollable bleeding. There is currently no cure for Ebola hemorrhagic fever. The best treatment consists of administering fluids and taking protective measures to ensure containment, like isolating the patient and washing sheets with bleach.

Ebolavirus duplicates at a rate so fast that the immune system does recognize the virus before it spreads(pathogenesis on the right).

Did you know?-The Zaire species is the most deadly and has a fatality rate of up to 90% to those infected. -The death toll in Africa caused by Ebolavirus has exceeded 2600. -No vaccines have been developed, primarily because of its rarity and seclusion in Africa. This has caused many moral controversies in healthcare and pharmaceutical industries. -In Africa, fruit bats, are natural hosts for Ebola viruses.


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