Ebola Infection Via Endocytosis Essay

638 words - 3 pages

Michael Mauvais
3/26/2015
4891193

Ebola Infection via Endocytosis

Ebola takes advantage of a cells endocytic pathway because the membrane receptors that bind to viral glycoproteins are non-specific, resulting in numerous carbohydrate proteins. As a result the cell engulfs the Ebola virus via micropinocytosis, Once Ebola is enveloped into endosome, viral glycoprotein is cleaved and bind to NPC1 before fusion into endosome membrane. TPC2 calcium channel is then activated to release viral genome into the cell where it will be replicated.
Ebola virus disease (EVD; also Ebola hemorrhagic fever, or EHF), or simply Ebola, is a disease of humans and other primates caused by ebolaviruses. Signs and symptoms typically start between two days and three weeks after contracting the virus with a fever, sore throat, muscular pain, and headaches. Then, vomiting, diarrhea and rash usually follow, along with decreased function of the liver and kidneys. At this ...view middle of the document...

[3] Semen or breast milk of a person after recovery from EVD may still carry the virus for several weeks to months.[1][4] Fruit bats are believed to be the normal carrier in nature, able to spread the virus without being affected by it. Other diseases such as malaria, cholera, typhoid fever, meningitis and other viral hemorrhagic fevers may resemble EVD. Blood samples are tested for viral RNA, viral antibodies or for the virus itself to confirm the diagnosis.[1]

Control of outbreaks requires coordinated medical services, alongside a certain level of community engagement. The medical services include rapid detection of cases of disease, contact tracing of those who have come into contact with infected individuals, quick access to laboratory services, proper healthcare for those who are infected, and proper disposal of the dead through cremation or burial.[1][5] Samples of body fluids and tissues from people with the disease should be handled with special caution. Prevention includes limiting the spread of disease from infected animals to humans. This may be done by handling potentially infected bush meat only while wearing protective clothing and by thoroughly cooking it before eating it. It also includes wearing proper protective clothing and washing hands when around a person with the disease.[1] No specific treatment or vaccine for the virus is available, although a number of potential treatments are being studied. Supportive efforts, however, improve outcomes. This includes either oral rehydration therapy (drinking slightly sweetened and salty water) or giving intravenous fluids as well as treating symptoms.

The disease was first identified in 1976 in two simultaneous outbreaks, one in Nzara, and the other in Yambuku, a village near the Ebola River from which the disease takes its name.[6] EVD outbreaks occur intermittently in tropical regions of sub-Saharan Africa.[1] Between 1976 and 2013, the World Health Organization reports a total of 24 outbreaks involving 1,716 cases.[1][7] The largest outbreak is the ongoing epidemic in West Africa, still affecting Liberia, Guinea and Sierra Leone.[8][9][10] As of 12 July 2015, this outbreak has 27,678 reported cases resulting in 11,276 deaths.[11]

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