Authors Note: This essay will be about viruses and the negative effects they have on the body.
A virus is an infective agent that typically consists of a nucleic acid molecule in a protein coat, and is too small for the human eye to see. These viruses are practically in every human being at one time. Viruses do not like to leave and are hard to find, which is why they enter our bodies so easily. Viruses don’t go down without a fight.
For instance viruses enter our bodies from things from the outside world. Such as: coughs, sneezing, vomiting, bites from animals, or things like going to the bathroom and not washing your hands. When viruses enter your body, some of them make you get sick due to the fact that they use your body's resources to live and reproduce, and also because their waste products are toxic. Viruses tend to want to take over, so they break into the cell, and they multiply in size and take over the cell. In order to get the viruses out of the cell you have to kill the whole cell, and the viruses still do not die.
You may ask, where do the viruses go? Due to viruses being the size they are which is extremely small, it is hard to find them. Also viruses hide within a cell, which makes it hard to locate them. When a virus is created it breaks into a cell and begins to multiply. Overall viruses cannot be cured by medicine. The only thing that can get rid of them is time.
Pursuing this further is the explanation of how viruses affect our bodies. When a virus attacks it takes control of that first cell, it starts to move to other cells in big numbers, until it takes control of the whole organ. At that moment the DNA of the body stops working, because the DNA in of the virus took control. When the virus takes control it can be like a dictator and own the whole body (Victoria). Viruses have different mechanisms by which they produce disease in an organism, which largely depends on the viral species. Mechanisms at the cellular level basically include cell lyses, the breaking open death of the cell. In multicellular organisms, if enough cells die the whole organism will start to suffer the effects.
In addition when a virus takes control it can give us a variety of diseases. Examples of common human diseases caused by viruses are a common cold, influenza, chickenpox, and cold sores. Also there are serious diseases such as Ebola, AIDS, avian influenza and SARS are caused by viruses as well (Human Diseases Caused by Viruses).
In conclusion, viruses are a dangerous substance that enters our bodies when we would least expect they would. Viruses track many harmful things into our bodies such as diseases that are hard to get rid of. Overall viruses try to make our bodies there new homes, and they don’t plan on moving out anytime soon.
Bibliography
Facts about Viruses. (n.d.). Retrieved April 23, 2012, from dialouge for kids: http://idahoptv.org/dialogue4kids/season8/viruses/facts.cfm
lHuman Diseases Caused by Viruses. (n.d.). Retrieved April 26, 2012, from News Medica: http://www.news-medical.net/health/Human-Diseases-Caused-by-Viruses.aspx
science, L. (2012). Virus. Retrieved April 19, 2012, from LiveScience: http://www.livescience.com/topics/virus/
Victoria, S. G. (n.d.). Infections - bacterial and viral. Retrieved 4 23, 2012, from Better Health Channel: http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/infections_bacterial_and_viral?open
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