James_Lewis_Unit8Assignment_SC246.docx

A giardia parasite can take up to one to three weeks

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after treatment. A Giardia parasite can take up to one to three weeks to start showing associated symptoms in a person. When this parasite does show symptoms, the most common symptoms that are found are diarrhea, gas, floating stools, abdominal pain, and dehydration (“Giardia”, 2015). The symptoms that Giardia can impose are due to the type of parasite that is. Giardia Intestinalis is considered a protozoan organism that has flagella, and lives in many different types of ecosystems. Protozoa Protozoans are unicellular organisms that have may have specific structures for carrying out various metabolic activities (Yaeger, 1996). These microorganisms are unlike other species of parasites because of their unique ability to have multiple stages of life. Some protozoa, like Giardia, use cysts to maintain their prevalence in the host that they are infecting. These cysts are usually ingested via food or contaminated water. When the environment is right, the cysts that are produced replicate into microbes called trophozoites. Trophozoites, when ingested, multiply in the bowels of their host and then attach to the lining of the intestinal mucosa. Prevalence Although the Giardia parasite mainly infects animals, how it is spread can impact human health as well. In places of the world that do not have proper water treatment facilities, Giardia can be found mainly in water and soil. As far as recent studies show, Giardia has a prevalence in developed countries as well. Even with proper water treatment and food inspections, Giardia still has a prevalence range of 3-7% (Halliez & Buret, 2013). In underdeveloped countries, the
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GIARDIA INTESTINALIS 4 prevalence is about 20-30% (Halliez & Buret, 2013). The most common vector for transmission of Giardia is feces infected with the Giardia cysts. These opportunistic cysts can live for approximately 3 months in water (Faubert, 2000). Because of the wide spread variety occurrences of human transmitted Giardia parasites, there are many ways that it can be treated.
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