Cryptosporidium
Cryptosporidium is a type of protozoan that causes diarrhea in humans. It is commonly associated with people who are HIV-positive patients.http://en.wikipedia.org/wiki/Cryptosporidium
Cryptosporidium is found in every part of the US. Millions of protozoan can be released in a bowel movement from and infected human or animal. It can be found in water sources that have been contaminated with feces . Water can also be contaminated through sewage overflows, sewage systems that are not properly working, polluted storm runoff, etc.
http://www.cdc.gov/healthywater/drinking/private/wells/disease/cryptosporidium.html
Cryptosporidium is highly resitant to cholrine, therefore you must use filteration processes such as direct filteration, slow-sand filteration, diatomaceous earth filter, etc to get rid of it. You can also boil the water to remove the contaminant.
Video:
http://animal.discovery.com/tv-shows/monsters-inside-me/videos/the-cryptosporidium-parasite.htm
Giardia
Giardia is a microscopic parasite that causes the diarrheal illness known as giardiasis. Giardia is found on surfaces or in soil, food, or water that has been contaminated with feces from infected humans or animals. It is tolerant to chlorine disinfections and it can survive outside the body for days. Water is the most common way of transmission.http://www.cdc.gov/parasites/giardia/
Millions of Giardia parasites can be released in a bowel movement of an infected human or animal. Human or animal waste can enter the water through different ways, including sewage overflows, sewage systems that are not working properly, polluted storm water runoff, and agricultural runoff. Water is more likely to get contaminated if there has been recent flooding.
http://www.cdc.gov/healthywater/drinking/private/wells/disease/giardia.html
To remove this contaminant, you can bring the water to a rolling boil for one minute and then let it cool. Store it in a clean, sanitized container and refrigerate. Procces of filteration can also be used such as reverse osmosis.
Giardia is the most common intestinal parasitic disease in the United States.
Video:
http://www.youtube.com/watch?v=UbSUE0gYfxI
Shigella
Shigella bacteria cause an infectious disease called Shigellosis. This infections causes diarrhea, fever, and stomach cramps. The diarrhea is usually bloody and and usually goes away in 5 to 7 days. Some people need to be hospitalized, however some people might not have any symptoms, but can still passs the bacteria to others.http://www.cdc.gov/nczved/divisions/dfbmd/diseases/shigellosis/
Shigella gets in our water by contamination. Sewer overflows, contaminated run off etc can casue shigella to get into our water too.
To get rid of Shigella use the same methods as Giardia and Cryptosporidium.
Video:
http://www.youtube.com/watch?v=jqd_iFURaNY
http://www.youtube.com/watch?v=kufdtZzSn70
VENN DIAGRAM:
https://docs.google.com/drawings/d/1eNLElBGUQ9oj2ECdoLS0aI0rZ1_aCaol_FiNiptc1eM/pub?w=960&h=720
EXTRA LINKS:
http://en.wikipedia.org/wiki/Cryptosporidium
http://en.wikipedia.org/wiki/Giardia
http://en.wikipedia.org/wiki/Shigella
Which of these organisms can infect local pools during the summer?
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ReplyDeleteCryptosporidium is one organism that likes to get into local pool water during the summer because if little kids have an accident in the pool or a person doesnt wash their hands they can spread easy.
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How does shigella spread from person to person?
ReplyDeleteShigella can be spread from person to person by eating food or liquids that have been contaminated by an infected person.
ReplyDeleteShigella was a widespread problem during the summer of 2012 in Northern Kentucky. Many of the pools in the area were shut down for many weeks. The article states that chlorine is an effective way to purify the water and rid of this type of bacteria. With many pools changing to Salt Filtration Systems, how effective would this method be in ridding of the bacteria?
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