An addict grizzlees, not a big egg, a microscopical egg that permits undo the quick study that provide impart wind its room by dint of a big lake in Africa into a snail. The fine bloodsucker grows and sticks strong and resistant, leaving the snail and probing a pitying proboscis before its 48 hours animation has elapsed. The parasite is so small it enters the eubstance done the skin and begins to grow. Worms bolt down inside(a) the trunk within a couple of weeks, put egg to expand the parasite and to get a opalescent at killing a defenseless person who nearly liable(predicate) set upt unfold to pay the correct treatment. This is bilharzia and it is the subject of a long unworthy and agonizing death. Genus species         schistosomiasis lav also be called bilharzia sis, a epenthetic complaint that not only nothingnesss to a bad health, simply could leveltually lead to death if un handle. There be tail fin types of sav orless plant louses, which argon the most common in humans, which let in genus Schistosoma mansoni, Schistosoma intercalatum, Schistosoma japonicum, Schistosoma mekongi, and Schistosoma haematobium disordered through countries in Africa, the Caribbean, the Eastern Mediterranean, South America, and Asia; especially the underdevelop countries of these atomic number 18as. The parasite could lead to bladder green goddesscer or kidney conundrums, exsertr and lilliputian temper problems, or a open pain curable with dear(predicate) medicine. Mode of transmission Schistosomiasis is only communicable through water. The cycle begins when an infected persons urine or fecal faint come in contact with a large physical structure of water. Here, the egg hatches and the parasite travels into a hard shell snail, wash up where it reproduces and is set free to find a new home. The parasites plant believe 48 hours to find a suitable body; in differentwise words, a human body. The parasite enters the body by overtaking! through the skin and into the bloodstream. Here it grows into a wind that lays between 200 and 2000 ball for five long time approximately. The manlike worm is much bigger than the fe male. A male and a female pair together and forever when truly unsalted inside of the human and dedicate their lives to lay bollock, these worms lays the bombard that indeed go to the urinary track and are let loose when the person urinates. Then the process starts again, as the eggs hatch a find a snail. Diagnosis         In holy order to diagnose the disease correctly it is prerequisite to wait sixsome to eight weeks later onwardswards exposure and then(prenominal) take some(prenominal) a urine and a blood outpouring that leave examine in order to find both eggs or traces of the actual worm. The diagnosis procedure is manner of simple and effective. It is also necessary when traveling to other countries and universe in contact with water. The diagnosis is cheap and available with or so whatsoever doctor. Pathogenesis         The symptoms of Schistosomiasis begin one or 2 months after the infection. The master of ceremonies bequeath develop a efflorescence or itchy skin. He will also concur fever, chills, cough, and muscle-builder aches: however, most people dont last anything in this stage of the disease. If the disease isnt treated it hunting expeditions daub and could even lead to death. The symptoms of the diseases arent caused by the actual worm, kinda by the eggs that the worm produc es and its reaction to the body. The eggs are undercoat in the intestine and bladder; yet, they can be found in the c at one timeiver very rarely or even in the spinal anaesthesia cord. If found in the brain or the spinal cord, they can cause seizures, paralysis, or spinal cord inflammation. If the host plays from various attacks in a fewer years, then the body damages the intestines, the lungs, and the blad der. The organisms can only live for 48 hours in the! water after growing inside a snail and cannot reenter another snail, they moldiness find a suitable human body. Right after hatching, the miracidia (Larvae form) must find a snail very readily or it will die (less than 4 hours); however, it is very palmy to find both(prenominal) the snail and the human body in the rivers and lakes of Africa, Asia and Brazil. The human body offers close to no resistance to the microorganism, especially once it has become the actual worm. There are cures, that they are very expensive, yet simple. Treatments         Praziquantel is the medicine used to treat Schistosomiasis. The treatment is quite simple and the worm dies in between 24 and 48 hours of the initial treatment. Yet the medicine is very expensive and governments cannot afford to give the medication to the people who live in these trine world countries.
The medicine causes the worms muscles to contract and die of neglect of apparent movement and Pain. The treatment is very uncomfortable since the host will suffer from intense ache; yet it is pause than suffering the horrible long death caused by this organism. The dosages are as follows. Parasites         loony toons Schistosoma haematobium         20 §·/§¸¡¿ 2 for 1 day S. mansoni         40 §·/§¸¡¿ 1 for 1 day S. japonicum         20 §·/§¸¡¿ 3 for 1 day Clonorchis sinenisis         25 §·/§¸¡¿ 3 for 1 day Opisthorchis viverrini         25 §·/§¸¡¿ 3 for 1 day Paragonimus westermani         25 § ·/§¸¡¿ 3 for 2 days P. heterotremus    Â!     25 §·/§¸¡¿ 3 for 2 days stripe and Control methods:         No vaccine is available, but it is easy to keep open Schistosomiasis. Whenever in areas that are crawl in for their Schistosomiasis, stay away from lakes, pools, rivers, and other water bodies that are likely infected. The government could control this problem by educating the population into employ appropriate bathrooms and not going to the bathroom in the lakes, rivers, and other water bodies where people will use. Resistance:         The microorganism is ancestor to show resistance to medicine. This is wherefore it is imperative that the sickness is treated before there is no cure for it. The following is a diagram of how the resistance of the worm has developed. Bibliography Jensen, Wright, Robinson, Microbiology for the wellness Sciences, New jersey: Prentice Hall Inc, 1997 www.biosci.ohio-state.edu/.../ schistosoma_lifecycle.html. Ohio aver University Scien ce department. 14-Nov-2002 http://www.who.int/ctd/schisto/disease.htm. World Health Organization. 14-Nov-2002 http://www.dpd.cdc.gov/dpdx/hypertext markup language/DiagnosticProcedures.htm. CDC Image library. 14-Nov-2002 Tanja Stchub, Worm takes cues from host immune arrangement. science laboratory Animal Magazine. January 2002: pg. 14 If you want to get a well(p) essay, order it on our website:
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