Parasites and Humans: Why Can’t We All Just Get Along? Introduction The definition of a parasite is: “an organism that lives on or in an organism of another species, known as the host, from the body of which it obtains nutriment.” (Dictionary.com,2012) There are several kinds of parasitic relationships in the world. Mutualism is one of them. This occurs when each member of the association benefits the other. Can humans and parasites have a mutualistic relationship in medicine? Dating back to the B.C. era it has been believed that parasites, most commonly leeches and maggots, were the cure for various maladies. Leeches at one time were thought to cure everything from obesity to mental illness. In the early 20th century Maggots were removed from medicinal use in the 1930s. With the introduction of new antibiotics and better surgical techniques we found that we had a much better grasp of healing and inhibiting bacterial infections and we no longer required the use of maggots to heal open wounds. Although, in 1989 there were findings that maggot therapy was superior in certain cases to antibiotic therapy for eradicating a bacterial infection. The first modern clinical studies of maggot therapy were started at the Veterans Affairs Medical Center in Long Beach, CA, and at the University of California, Irvine. The results of these studies showed that the use of maggots today is still an effective and safe treatment for certain types of wounds. The reports also stated that there is no reason to use maggots as a last resort. There are published reports of a limb salvage rate of over 40% in pre-amputation maggot therapy. When this therapy was used even earlier in the course of treatment the results were even more dramatic. (Sherman, 2010) Leeches have always had their place in history as we have seen. Leech therapy was used up until the 1960s when it too was removed from medical practice. Bloodletting of sorts was taken over by modern day phlebotomy. So we again saw no need in using the old practices with the advances we had made. In the 1980s, leech therapy made a big comeback by plastic surgeons that used leeches to relieve
Eukaryotic Parasites ENDOPARASITES (internal) Kingdom: Animalia (multicellular parasites) Phylum: Platyhelminthes (flatworms) Class: Trematoda (flukes) Genus Species: Schistosoma japonicum Disease: Schistosomiasis is an infection caused by Schistosoma japonicum that causes a skin reaction known as “swimmer’s itch”. It remains a significant health problem in lake and marshland regions. ENDOPARASITES (internal) Kingdom: Animalia (multicellular parasites) Phylum: Platyhelminthes…
Imani Kibler 2012-2013 Parasites and Wild Felids Mr.Mittiga Marine Science Imani Kibler Marine Science Parasites and Wild Felids Mr.Mittiga 11-26-2012 Abstract This paper is about how parasites interact with wild felids, members of the cat family. This paper focuses on how harmful parasites are to felids and how these parasites are making it so some species of felids are experiencing difficulty with staying…
some infectious sickness that causes a transformation in a person’s brain function and their personality causing them to resort to primal instincts. Brain parasites and diseases are also very possible ways that these symptoms are caused. The idea of a zombie is not that farfetched, especially through the uses of science. With poisons, parasites, and infectious diseases, what has been seen as a subject of nightmares could possibly be the next world disaster. The word “zombie” comes from the Haitian…
ovale and Plasmodium malariae) and each has a slightly different effect on the body. These organisms are carried from person to person by the main mosquito called Anopheles. When it bites an infected person, the mosquito sucks up blood containing the parasite, which may then be passed on to someone else when a mosquito bites them. ‘It is estimated that 300 to 500 million malaria infections occur annually and 90% of these are in the sub-Saharan Africa’. [8] The problem: Malaria is a biological problem…
Advocates, Matthew Bonds – Declining Biodiversity Scientists are now looking into the life cycle of diseases and the effects a loss of habitats can have on parasites feeding in them. When the habitat of a host of disease carrying parasites is degraded, the parasites must find another mammal to feed off of. This increases the disease risk to humans dramatically, as the bugs will typically move to feed off of them. As the number of plants, mammals, and birds are rapidly decreasing, more species…
and Spread of infection Understand the causes of infection Q1.1 Identify the differences between bacteria, viruses, fungi and parasites All 4 are different types of pathogens Bacteria is a single celled organism that multiply by themselves. They live within and on most living and non-living things. The majority of bacteria are harmless and beneficial to the human body but some can cause infectious diseases. A bacterium usually affects one part of the body and doesn’t spread across or through…
hearts in south america are quietly damaged by these parasites that are carried by these insects called kissing bugs. the bugs can live in the mud and stick houses by the hundreds and they like to bite their sleeping victims. they then defecate near the punctured skin and wriggling wormlike parasites come out of the feces and enter the wound, then most likely they will head to the victims heart. In about one third of the victims the parasites damage the victims organs for decades before they cause…
momentarily watched as the recent rain water rushed into the small now overfilled creek carrying away with it the 3 days of rain … and an intruder the whole town would come to know. The intruder in the story is a parasite called cryptosporidium and it is believed to be transmitted from animals to humans through water that has washed across feces from animals that are infected with cryptosporidiosis. The water continues winding its way from the small overfilled creek to lakes, rivers and sometimes the public…
disease caused by a parasite. Malaria is transmitted to humans by the Anopheles mosquito. it is caused by infection with the Plasmodium genus of the protozoan. There are more than several hundreds of these infectious parasites. It is known that there are five tpyes of malaria. The first type of malaria are Plasmodium viva known as the milder form of the disease. It is generally not fatal but the only thing is that the parasite has a liver stage and can remain in the human body for years without…
on to document the lifecycle of the malaria parasite, called Plasmodium, and below is his illustration of its lifecycle3. As research continued on this still relatively unknown illness, many did not believe that marsh fever was caused by a parasite. It was thought that it had to be a bacterial infection coming from the ground or water of the marshlands. It took Dr. Laveran five years to start convincing his colleagues that it was in fact a parasite and not a bacterial infection3. With the advancement…