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 write an article on understanding the nature of pathogens and their impact on the environment Paper must be at least 1250 words

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 write an article on understanding the nature of pathogens and their impact on the environment Paper must be at least 1250 words. Please, no plagiarized work! Giardia lamblia, on the other hand, can cause a gastrointestinal disease called giardiasis. Symptoms of this disease include fatigue, cramps, and diarrhea. Aside from total coliforms and protozoa, viruses including hepatitis A virus, Norwalk virus and rotaviruses can also contaminate water (see www.epa.gov).

To predict the presence of pathogens in the bayou, we need to use pathogen indicators. Pathogen indicators are a set of parameters that are used to determine the kind and amounts of contaminants in the water. Good pathogen indicators should be non-pathogenic but have the survival characteristics as pathogens, they should be closely associated with pathogens, they should not replicate in the environment and they should be easily detected and enumerated (see http://www.epi-net.org/eng/IndicatorPathogensBy30Nov.pdf). For instance, total coliforms are usually used as an indicator of fecal contamination (see www.epa.gov). Coliforms are mostly harmless bacteria that live in the water, in the soil and in the gut of animals (see www.epa.gov). The presence of total coliforms is easily detected thus. this indicator is often used for water quality monitoring. However, the absence of total coliforms in the water does not mean that the water is free from pathogens.

The existence of pathogens in the bayou can have a serious impact on the lives of the people living near the bayou. As it is, it necessary that people in this area should know more about the threats brought by pathogens. For the purpose of this essay, we will discuss the different sources of pathogens and the possible means to control it.

According to EPA, pathogens that are found in the water during the dry season usually come from leaking septic tanks, sewage discharges, and runoff from animal feedlots into bodies of water.&nbsp.