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African trypanosomiasis, also known as African sleeping sickness or simply sleeping sickness, is an insect-borne parasitic infection of humans and other animals. It is caused by the species Trypanosoma brucei. Humans are infected by two types, Trypanosoma brucei gambiense (TbG) and Trypanosoma brucei rhodesiense (TbR). TbG causes over 92% of reported cases. Both are usually transmitted by the bite of an infected tsetse fly and are most common in rural areas.
Pentamidine is an antimicrobial medication used to treat African trypanosomiasis, leishmaniasis, Balamuthia infections, babesiosis, and to prevent and treat pneumocystis pneumonia (PCP) in people with poor immune function. In African trypanosomiasis it is used for early disease before central nervous system involvement, as a second line option to suramin. It is an option for both visceral leishmaniasis and cutaneous leishmaniasis. Pentamidine can be given by injection into a vein or muscle or by inhalation.
Trypanosomiasis or trypanosomosis is the name of several diseases in vertebrates caused by parasitic protozoan trypanosomes of the genus Trypanosoma. In humans this includes African trypanosomiasis and Chagas disease. A number of other diseases occur in other animals.
Suramin is a medication used to treat African sleeping sickness and river blindness. It is the treatment of choice for sleeping sickness without central nervous system involvement. It is given by injection into a vein.
Tuberculosis management describes the techniques and procedures utilized for treating tuberculosis (TB).
Melarsoprol is an arsenic-containing medication used for the treatment of sleeping sickness. It is specifically used for second-stage disease caused by Trypanosoma brucei rhodesiense when the central nervous system is involved. For Trypanosoma brucei gambiense, eflornithine or fexinidazole is usually preferred. It is effective in about 95% of people. It is given by injection into a vein.
Eflornithine, sold under the brand name Vaniqa among others, is a medication used to treat African trypanosomiasis and excessive hair growth on the face in women. Specifically it is used for the 2nd stage of sleeping sickness caused by T. b. gambiense and may be used with nifurtimox. It is taken intravenously or topically. It has also been given orally on at least some rare occasions for the treatment of African trypanosomiasis.
Arsanilic acid, also known as aminophenyl arsenic acid or aminophenyl arsonic acid, is an organoarsenic compound, an amino derivative of phenylarsonic acid whose amine group is in the 4-position. A crystalline powder introduced medically in the late 19th century as Atoxyl, its sodium salt was used by injection in the early 20th century as the first organic arsenical drug, but it was soon found prohibitively toxic for human use.
Trypanosoma brucei is a species of parasitic kinetoplastid belonging to the genus Trypanosoma that is present in sub-Saharan Africa. Unlike other protozoan parasites that normally infect blood and tissue cells, it is exclusively extracellular and inhabits the blood plasma and body fluids. It causes deadly vector-borne diseases: African trypanosomiasis or sleeping sickness in humans, and animal trypanosomiasis or nagana in cattle and horses. It is a species complex grouped into three subspecies: T. b. brucei, T. b. gambiense and T. b. rhodesiense. The first is a parasite of non-human mammals and causes nagana, while the latter two are zoonotic infecting both humans and animals and cause African trypanosomiasis.
The Drugs for Neglected Diseases initiative (DNDi) is a collaborative, patients' needs-driven, non-profit drug research and development (R&D) organization that is developing new treatments for neglected diseases, notably leishmaniasis, sleeping sickness, Chagas disease, malaria, filarial diseases, mycetoma, paediatric HIV, cryptococcal meningitis, hepatitis C, and dengue. DNDi's malaria activities were transferred to Medicines for Malaria Venture (MMV) in 2015.
Nifurtimox, sold under the brand name Lampit, is a medication used to treat Chagas disease and sleeping sickness. For sleeping sickness it is used together with eflornithine in nifurtimox-eflornithine combination treatment. In Chagas disease it is a second-line option to benznidazole. It is given by mouth.
Malaria prophylaxis is the preventive treatment of malaria. Several malaria vaccines are under development.
Mansonella perstans is a filarial (arthropod-borne) nematode (roundworm), transmitted by tiny blood-sucking flies called midges. Mansonella perstans is one of two filarial nematodes that causes serous cavity filariasis in humans. The other filarial nematode is Mansonella ozzardi. M. perstans is widespread in many parts of sub-Saharan Africa, parts of Central and South America, and the Caribbean.
Fexinidazole is a medication used to treat African trypanosomiasis caused by Trypanosoma brucei gambiense. It is effective against both first and second stage disease. Some evidence also supports its use in Chagas disease. It is taken by mouth.
The London Declaration on Neglected Tropical Diseases was a collaborative disease eradication programme launched on 30 January 2012 in London. It was inspired by the World Health Organization roadmap to eradicate or prevent transmission for neglected tropical diseases by the year 2020. Officials from WHO, the World Bank, the Bill & Melinda Gates Foundation, the world's 13 leading pharmaceutical companies, and government representatives from US, UK, United Arab Emirates, Bangladesh, Brazil, Mozambique and Tanzania participated in a joint meeting at the Royal College of Physicians to launch this project. The meeting was spearheaded by Margaret Chan, Director-General of WHO, and Bill Gates, Co-Chair of the Bill & Melinda Gates Foundation.
Acoziborole (SCYX-7158) is an antiprotozoal drug invented by Anacor Pharmaceuticals in 2009, and now under development by the Drugs for Neglected Diseases Initiative for the treatment of African trypanosomiasis.
Victor Kande Betu Kumeso is a Congolese physician who is an expert in African trypanosomiasis. He works at the Programme National de Lutte contre la Trypanosomiase Humaine Africaine at the University of Kinshasa.
The Sleeping Sickness Commission was a medical project established by the British Royal Society to investigate the outbreak of African sleeping sickness or African trypanosomiasis in Africa at the turn of the 20th century. The outbreak of the disease started in 1900 in Uganda, which was at the time a protectorate of the British Empire. The initial team in 1902 consisted of Aldo Castellani and George Carmichael Low, both from the London School of Hygiene and Tropical Medicine, and Cuthbert Christy, a medical officer on duty in Bombay, India. From 1903, David Bruce of the Royal Army Medical Corps and David Nunes Nabarro of the University College Hospital took over the leadership. The commission established that species of blood protozoan called Trypanosoma brucei, named after Bruce, was the causative parasite of sleeping sickness.
References
- ↑ Priotto G, Kasparian S, Mutombo W, Ngouama D, Ghorashian S, Arnold U, et al. (July 2009). "Nifurtimox-eflornithine combination therapy for second-stage African Trypanosoma brucei gambiense trypanosomiasis: a multicentre, randomised, phase III, non-inferiority trial". Lancet. 374 (9683): 56–64. doi:10.1016/S0140-6736(09)61117-X. hdl: 10144/72797 . PMID 19559476. S2CID 32757305.
- ↑ Alirol E, Schrumpf D, Amici Heradi J, Riedel A, de Patoul C, Quere M, Chappuis F (January 2013). "Nifurtimox-eflornithine combination therapy for second-stage gambiense human African trypanosomiasis: Médecins Sans Frontières experience in the Democratic Republic of the Congo". Clinical Infectious Diseases. 56 (2): 195–203. doi: 10.1093/cid/cis886 . PMID 23074318.
- ↑ "Nifurtimox-eflornithine combination treatment for sleeping sickness (human African trypanosomiasis): WHO wraps up training of key health care personnel". World Health Organization. March 23, 2010. Archived from the original on October 21, 2014.
- 1 2 Franco JR, Simarro PP, Diarra A, Ruiz-Postigo JA, Samo M, Jannin JG (2012). "Monitoring the use of nifurtimox-eflornithine combination therapy (NECT) in the treatment of second stage gambiense human African trypanosomiasis". Research and Reports in Tropical Medicine. 3: 93–101. doi: 10.2147/RRTM.S34399 . PMC 6067772 . PMID 30100776.