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Parasites in Humans

Here are a few different types of parasites in humans. Enjoy.
by

Blair Orndorf

on 14 March 2011

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Transcript of Parasites in Humans

Parasites in Humans Number 1... African trypanosomiasis...
Sleepy sickness parasitic disease of people and animals,
transmitted by the tsetse fly This parasite can get into peoples head and mess them all up. Its symptoms occur in two stages. check out this video... from animal planet's "Monsters inside me". The first stage of African trypanosomiasis is known as the haemolymphatic phase. It causes fever, headaches, joint pains, and itching. If the disease is left untreated, it can destroy the Host body's defense system and cause far worse damage, such as anemia, endocrine, cardiac, and kidney dysfunctions. The second stage is called the neurological phase. It begins when the parasite invades the central nervous system by passing through the blood-brain barrier. This is where the phrase "sleepy sickness" comes from. The symptoms include confusion, slower coordination, and fatigue. In the second stage, your sleep cycle can also get disrupted, causing you to sleep during the day but not at night. Without treatment, this parasitic disease
will lead to death. Number 2... The tsetse fly is mostly found in Africa And is a little bigger than the ones we normally see. Primary amoebic meningoencephalitis
(PAM) PAM is a disease of the central nervous system caused by an infection from Naegleria fowleri. -Naegleria fowleri is a free-living form of protist that is also known as "the brain-eating amoeba". Naegleria Fowleri is typically found in warm bodies of fresh water, such as ponds, lakes, rivers, and hot springs. It is also found in soil, ground near warm water, and swimming pools without that much chlorine. no cases have been reported of it in the ocean. the infection gets in the body through the nose and attaches itself to the olfactory nerve. (the nerve that controls your sense of smell) it spreads rapidly by feeding on nerve tissue in the brain. The infection ruins your sense of smell and causes Necrosis, which is the death of cells and living tissue. the word necrosis comes from the greek word meaning death, the stage of dying, and the act of killing. This is the Trypanosomiasis parasite that the tsetse fly injects into the human. This is the amoeba that causes the disease in your body. The disease is very rare but deadly. once the organisms have multiplied and moved to greater parts of the brain, they start to cause even more symptoms such as headaches, nausea, vomiting, stiff neck muscles, seizures, confusion, and eventually irreversible coma. from this point, death usually occurs within 14 days. Demodex folliculorum Demodex folliculorum face mites Number 3... When face mites are present in large numbers on humans, it is known as “demodicosis”. A face mite is very tiny and has a neck, head, body, and tail. Face mite parasites are found in human hair follicles, usually more-so around the cheeks and forehead. Each follicle can have a small colony of mites (about 10). their food is mainly sebaceous secretions and dead cells, and They use the skin on your face to reproduce. the female adult lays 20-24 eggs on its hair follicle. sebaceous secretion is the oil that skin produces. Face mites are more common in elderly but can occur in anyone. they can lead to dermatitis and hair loss (such as in your eyelashes or eyebrows). Here's another picture of the creatures living in most of this classroom's eyelashes and eyebrows or anywhere on your face's skin... (this is a white blood cell) this is the largest worm that can invade your body. number 4... Ascaris lumbricoides giant roundworm this worm can grow to be around 14 inches long. it is prevalent worldwide, especially in tropical and subtropical countries. this infection occurs when humans swallow an infected egg. it breaks through the wall of their small intestine and enters their bloodstream. from here, it travels to the liver and heart, then to the cardiovascular syptem to grow and molt. In three weeks, the larvae will be coughed up and reswallowed to move into the small intestines again where the parasite will continue to grow and mature to an adult worm! A female worm can produce AS MANY AS 200,000 eggs per day for a year if you don't get them treated. many of the eggs and worms leave your body through your waste system, while others stay in your intestines and continue to grow. The worms that stay in your body rupture your intestines and cause major blockage in them. The end!
I hope you learned a little something about the gross things that can live inside of you.
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