Dengue Fever And Variant Creutzfeldt Jakob Disease Essay

Dengue Fever And Variant Creutzfeldt Jakob Disease Essay

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A disease can be defined as any form of condition that prohibits an organism from functioning effectively in its surroundings. Diseases can either be caused through pathogens, classing it as an infectious disease, or through a genetic, nutritional, environment or physiological malfunction which would place it in the category of a non-infectious disease. Our first and foremost important system of protection against these diseases is our immune system, an example of the way this response works can be established and analysed when Dengue Fever and Variant Creutzfeldt-Jakob Disease are examined closely.
Dengue Fever
This disease may appear to hold minor implications at first glance but it can potentially turn into a life threatening disease for the infected host. It falls under the category of a viral infection, or as more commonly known; a virus and produces a majority of infection cases in tropical and subtropical regions. There are four different strands of the virus, single-stranded RNA viruses of the genus Flavivirus, and are often titled DENV 1,2,3, or 4 (Centres for Disease Control and Prevention, 2015).
Causes
Viruses are infectious diseases that have many modes of transportation into host bodies; however, in this case Dengue Fever is caused as a result of a vector, the mosquito genus Aedes aegypti and Aedes albopictus (Centres for Disease Control and Prevention, 2015). These vectors carry the virus within their saliva, as they proceed to the portal of entry and break the skin of the soon to be host the infected saliva enters the bloodstream, transmitting the virus from the vector to the host. The way that this virus can be transmitted form one host to another is through a mosquito biting a contaminated person and transporti...


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...ve the virus (Nature Education, 2014).
The effectiveness of the immune systems response to Dengue Fever can be majorly affected if the host has received exposure to more than one strand of Dengue virus. This leads to a higher risk of obtaining Severe Dengue Fever or Dengue Haemophilic Fever due to antibody-dependent enhancement, which inevitably worsens the symptoms (Nature Education, 2014). Gaining server or haemophilic Dengue Fever can potentially become life threatening as the immune system is not as easily able to fight off the virus. Pre-disposing conditions such as Asthma, Sickle Cell Anaemia and Diabetes Mellitus as well as individuals with weak immune systems due to variations in leukocyte antigen alleles hold an increased risk of severe dengue fever so it is advised that individuals with these conditions take extra precautions (Nature Education, 2014).




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