The female scientist, fully dressed in a quarantine outfit, anxiously prepared to inject a sedative into the arm of the delirious patient. Although he was being held down by several pairs of arms, he was still putting up a good fight. The needle goes in. He jerks. The needle flicks into the forefinger of the scientist. The scientist stares at her finger in shock and disbelief, and runs away. It would only be a few days now before she would die.Thankfully, this is only a scene out of the 1995 box-office hit, Outbreak (Fig. 3), which was about Americans fighting against the spread of a nationwide epidemic caused by one of the most feared viruses of our time: the Ebola virus. I chose this topic out of curiosity; everyone shudders at the mention of this virus, and I have always wondered why people do so. This project will give me the opportunity to further investigate what are the factors which make the Ebola virus so deadly and so feared by man.What exactly is Ebola? Ebola is a viral hemorrhagic fever actually named after the River Ebola in Zaire, Africa, where it was first discovered. It belongs to a genus of ribonucleic viruses called filoviruses, under the family Filofiridae, which are characterized by their filament-like (thread-like) appearance with a little hook or loop at the end. Only five viruses exist in this family: the not-as-deadly Marburg, and the four Ebola strains: Ebola Zaire, Ebola Sudan, Ebola Tai and Ebola Reston. The latter only affects monkeys and hence is not harmful to man. (Ebola-Reston-infected monkeys display symptoms similar to the symptoms of the Ebola- Zaire virus shown in humans.) The first emergence of Ebola into the modern world took place in 1976, its ‘grand entrance’ in the form of two major outbreaks which happened almost simultaneously in Zaire (Fig. 2) and western Sudan, Africa. The mortality rate was 88% in Zaire and 53% in Sudan. More than 550 cases were reported and more than 340 died....
