Sunday, April 12, 2015

Part 1- Chapters 1- 9 Question 27

Describe the viral family tree, and some of the cousins to Ebola.

2 comments:

  1. Ebola has many other different "relatives" that not only cause the same symptoms but are transmitted the same and originated in related regions. Malaria, Marburg, rabies, and yellow fever are all diseases that were searched in central Africa as well as Ebola but "no one knew where any of the filoviruses came from; no one knew where they lived in nature" (Preston 63). Ebola is distantly related to it's cousins: "the measles, mumps, and rabies" (Preston 65). Not only is Ebola related to viruses such as those but certain pneumonia viruses relate to it as well. Ebola is much like the "parainfluenza virus which causes colds in children, and to the respiratory syncytial virus, which can cause fatal pneumonia in a person who has AIDS" (Preston 65). However, all of those viruses are just the viral family tree and Ebola is the only virus who has evolved into creating the most dangerous symptoms that actually contains the other symptoms of its close "relatives" in the viral family tree. Ebola causes a bad cold and severe fevers like other different viruses that are fatal and "like measles, it triggers a rash all over the body ... [and] some of its effects resemble rabies- psychosis, madness" (Preston 65). One of the most similar of all is indeed the Marburg virus that causes hemorrhagic fevers and the illness is marked by severe bleeding (hemorrhage), organ failure and, in many cases, death as related to Ebola. Most of these virus have some sort of treatment, however, the Ebola is one that has evolved to become incurable at the moment and is being treated while many have died from this harmful virus.

    ReplyDelete
  2. Ebola is a close relative of the marburg virus and one of the few filovirus known to man. Filoviruses are unique in their features. Most viruses, such as the influenza virus are sphere shaped and coated with various proteins. The Ebola virus however, is a strand- shaped virus. The family of filoviruses was made up of Ebola Zaire, Ebola Sudan, and Marburg. Filoviruses have been known to cause hemorrhagic fever, high temperatures and profuse bleeding from many surfaces, in humans, primates, and recently swine were found to have suffered these symptoms as well. Efforts must be placed in containment and prevention because there are no effective treatments for hemorrhagic fever.
    Preston, R. (1994). The Hot Zone. New York: Random House.
    Filoviridae. (2014, April 7). Retrieved April 20, 2015, from http://www.cdc.gov/vhf/virus-families/filoviridae.html

    ReplyDelete