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CDC - Parasites - Neglected Parasitic Infections (NPIs) in the United StatesParasitic infections What is a parasitic infection? Parasites are organisms that live from other organisms, or hosts, to survive. Some parasites do not significantly affect their hosts. Others grow, reproduce or invade organ systems that make their hosts sick, which leads to a parasitic infection. Parasitic infections are a major problem in the tropical and subtropical regions of the world. is one of the most deadly parasitic diseases. Parasitic infections can also occur in the United States. Common parasitic infections found in the United States include: Symptoms of parasitic infections vary depending on the body. For example: Parasitic infections can be caused by three types of organisms: Protozoa are monocellular organisms that can live and multiply within your body. Some infections caused by protozoa include giardiasis. This is a serious infection that you can get from drinking water infected with Giardia protozoa. Helminths are multicellular organisms that can live inside or outside your body. They are more commonly known as worms. They include worms, worms, spiny worms and round worms. The ectoparasites are multicellular organisms that live or feed on your skin. They include some insects and arcánides, such as mosquitoes, fleas, ticks and mites. Parasitic infections can spread in several ways. For example, protozoa and helmins can be spread through contaminated water, food, waste, soil and blood. Some may go through sexual contact. Some parasites are spread by insects that act as a vector, or carrier, of the disease. For example, malaria is caused by parasitic protozoo that are transmitted by mosquitoes when they feed on humans. Anyone can have a parasitic infection. But some people are at greater risk than others. It is more likely that you will get a parasitic infection if: Outdoor cats can get in touch with infected rodents and birds. This makes their owners more likely to contract toxoplasmosis, a type of protozoa. Toxoplasmosis can be very harmful to pregnant women and their developing babies. The infection spreads through cat feces. If you're pregnant, it's important for someone else to clean the trash box daily. Parasitic infections can be diagnosed in several ways. For example, your doctor may perform or order: Your doctor may also order tests to check for bacteria or other things that may cause infections. Your treatment plan will depend on your specific diagnosis. Typically, your doctor will prescribe medications. For example, they may prescribe medications to treat trichomoniasis, giardiasis or cryptosporidiosis. They will probably not prescribe toxoplasmosis medications if you are not pregnant and otherwise healthy, unless you have a severe and prolonged infection. Your doctor may also recommend other treatments to relieve your symptoms. For example, many parasitic infections can cause diarrhea, which often leads to dehydration. Your doctor will likely encourage you to drink plenty of fluid to replenish those you lose. There are several steps you can take to reduce the risk of getting a parasitic infection: If you suspect you have a parasitic infection, make an appointment with your doctor. They can help diagnose the cause of your symptoms and recommend a treatment plan. When receiving early treatment, it can help stop the spread of the infection to other people. Last medical review on 20 September 2016Read this following

Load of contents... Editors loading... Categories loading... When referring to evidence in academic writing, you should always try to refer to the primary (original) source. That is generally the article of the journal where the information was first declared. In most cases, the articles of Physiopedia are a secondary source and should not be used as references. Physiopedia articles are best used to find the original sources of information (see the list of references at the bottom of the article). If you believe that this Physiopedia article is the main source of the information you refer to, you can use the button below to access a related citation statement. Parasitic Infections Original Editor - Original editor Top Contributors - Top ContributorsContents Introduction A parasite is an organism that lives in or in a host agency and receives its food from or at the expense of its host. There are three main classes of parasites that can cause diseases in humans: protozoa, helmintos and ectoparasites. Human infections caused by parasites in the billions and vary from relatively harmless to fatalities. The life cycle of parasites can be very complicated. During their lives, parasitic organisms often go through several stages of development that involve changes not only in the structure but also in the biochemical and antigenic composition. For example. The helmintas form three main stages of the life cycle: eggs, larvae and adults, the larval stages of helminto have little likeness with the adult stages. For example, those of the plugs and flutes. Image in R: Image R: Collage of Protozoans: Left watch: Blepharisma japonicum, a ciliate; Giardia muris, a parasitic flagellate; Centropyxis aculeata, a testate (shelled) amoebaform; Peridinium willei, a dinoflagellate; Carolynian Chaos, a naked amoebozoan; Desform Parasitic infections Parasitic infections cause a huge burden of disease in both the tropics and subtropics, as well as in temperate climates. A misconception of parasitic infections is that they occur only in tropical areas. Although most parasitic infections are more common in the tropics, many people in temperate and subtropical areas are also infected, and visitors to tropical countries can return with a parasite infection. Disatened Tropical Diseases include parasitic diseases such as: Parasites are frequently transmitted to humans through contaminated food. The burden of disease due to most food parasites is very focused and results in significant morbidity and mortality among vulnerable populations. These diseases extract a large number of victims from the endemic populations, including loss of capacity to attend school or work, stunting the growth of children, impairing cognitive skills and developing young children, and the severe economic burden placed on all countries. ProtozoaProtozoa are microscopic organisms, of a cell that can be of a free-lived or parasitic nature. They are capable of multiplying in humans, which contributes to their survival and also allows serious infections to develop from a single organism. The transmission of the protozoo that lives in the human's intestine to another human usually occurs through a fecal-oral route (e.g. contaminated food or water or person-to-person contact). Protozoa that lives in the blood or tissue of humans is transmitted to other humans by an arthropod vector (e.g. through the bite of a mosquito or sand fly). Infectious protozoa for humans can be classified into four groups based on their mode of movement HelmintosHelmintas are large multicellular organisms that are generally visible at the naked eye in their adult stages. Helminations can be of a free or parasitic nature. In their adult form, helminths cannot multiply in humans. There are three main groups of helminths (of the Greek word for worms) that are human parasites: Ectoparasites These are organisms that live externally on the skin of hosts. Skin parasites drink blood or eat skin. They're usually so small you can't see them. Some species are cultivated on the skin while many simply crawl over it. Some parasites can complete their life cycles in humans. But many live outside the body only feeding every time in a time. Skin parasites can live in the skin like an egg, larva, ninfa or adult stadium. Eg. Treatment Antiparasitic medications are used to administer infections caused by various protozoa, helminto, and ectoparasites. Treatment options vary, depending on the specific causative organism within each group. Since 1960, the introduction of new drugs has made significant progress in chemotherapy for some endoparasitic infections. Albendazole and mebendazol have significantly improved the treatment of several intestinal nematode infections, while praziquantel has revolutionized the treatment of trematode and cestodium infections. At the same time, metronidazole and tinidazole have provided more effective and less toxic medicines for the treatment of amebiasis, giardiasis and tricomoniasis. Unlike endoparasitic infections, ectoparasitic infestations are caused by organisms that live in the skin or axes of patients' hair. The most common examples are lice and mites that cause pediculosis and sarna, respectively. The well-known ectoparasitic used to kill parasites living on the surface of the body are: permethrin, sulfur, lindane, dicophane, benzil benzoato, ivermectin and crotamiton. The reuse of education is crucial to achieving better results (the implementation of long-term community programmes is necessary for endemic regions). In many cases, antiparasitic drugs have severe adverse reactions, and therefore adherence to medicines is low. Therefore, direct observer therapy by the pharmacist may be essential if the results are to be improved. References Sign up to receive the latest news from Physiopedia Our partners The content in Physiopedia or accessible is only for information purposes. Physiopedia is not a substitute for professional advice or expert medical services from a qualified health care provider. © Physiopedia 2021 Silence Physiopedia is a charity registered in the United Kingdom, no. 1173185

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