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Ebola Hemorrhagic Fever Anderson Coates Michael Mastropole
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Discovery Three initial outbreaks 1976 in Sudan – E. Sudan 1976 in the Democratic Republic of the Congo – E. Zaire 1979 in Sudan – E. Sudan – Outbreak occurred in the same factory as first outbreak
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Virus Strains 5 different strains – E. Sudan – E. Zaire – E. Ivory Coast Only one confirmed case – E. Reston Non pathogenic to humans – E. Bundibugyo
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Ebola virus Member of Filoviridae – Pleomorphic RNA virus Genome has seven open reading frames – Code for structural proteins, glycoproteins, nucleoproteins, and polymerase
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Transmission Through blood to blood contact Undersupplied and undertrained health- care staff Reusing needles and bloody gloves in hospitals
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Natural Reservoir Currently unknown Sub-Saharan Africa non-human primate population Possibly local bat population
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Symptoms (Days 1-10) Replication period Inside the body’s monocytes, macrophages, and dendritic cells No visible symptoms, but contagious
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Symptoms (Days 11-14) Body recognizes infection and responds fever, headache, muscle pain, conjunctivitis, and abdominal pain Virus attaches to blood vessel walls
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Symptoms (Days 15-19) Virus attacks connective tissue Blood pools under skin nausea, blood in vomit and diarrhea, and hemorrhaging from the mouth, nose, and other body openings Hypovolemic shock causing death
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Ebola Documentary Trailer http://www.youtube.com/watch?v=A0n5dLiBJ L8
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Sources (2009). ViralZone. Retrieved Apr. 9, 2010, from Swiss Institute of Bioinformatics, Switzlerland. Web site: http://www.expasy.ch/viralzone/all_by_species/23.html. http://www.expasy.ch/viralzone/all_by_species/23.html (2009). Questions and Answers about Ebola Hemorrhagic Fever. Retrieved Apr. 8, 2010, from Centers for Disease Control and Prevention, Atlanta,GA. Web site: http://www.cdc.gov/ncidod/dvrd/Spb/mnpages/dispages/ebola/qa. htm. (2010). Syndromic Surveillance as an Early Warning System for Biological Attacks. Retrieved Apr. 8, 2010, from Medscape CME. Web site: http://cme.medscape.com/viewarticle/456526_11. http://cme.medscape.com/viewarticle/456526_11
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