Website last accessed on 04.06.2023
Although estimated to cause the ninth largest disease burden among individual infectious diseases, leishmaniasis is largely ignored in discussions of tropical disease priorities [1,2]. This consignment to critical oblivion results from its complex epidemiology and ecology, the lack of simple, easily...-applied tools for case management and the paucity of current incidence data, and often results in a failure on the part of policy-makers to recognize its importance [3,4]. Based on the World Health Assembly Resolu tion 2007/60.13, the World Health Organization (WHO) convened the Expert Committee on Leishmaniasis in March 2010, which subsequently issued the first updated technical report on leishmaniasis in more than 20 years [5,6].
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La Organización Panamericana de la Salud se complace en presentar la segunda edición del Manual de procedimientos para la vigilancia y el control de las leishmaniasis en la Región de las Américas, un instrumento de apoyo a las áreas de gestión y de servicios que trabajan con la leishmaniasis e...n los países de la Región. El manual tiene por objetivo ampliar los conocimientos sobre la enfermedad y aspira a ser una herramienta de trabajo para que el personal de salud y los equipos de gestión presten apoyo a los ministerios de salud en sus respectivos procesos de estructuración de los servicios de salud, así como en la optimización de las actividades para reducir la morbilidad y la mortalidad asociadas a las leishmaniasis. En esta segunda edición, se han puesto al día los datos epidemiológicos y las recomendaciones, en consonancia con las Directrices para el tratamiento de las leishmaniasis en la Región de las Américas, publicadas en el 2022. Además, se han revisado y complementado todos los capítulos para ofrecer a los países información actualizada que contribuirá a fortalecer la vigilancia, la asistencia y el control de los casos en seres humanos, vectores y reservorios.
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Leishmaniasis is a vector-borne tropical/subtropical disease caused by an intracellular parasite transmitted to humans by sand fly bite. It is endemic in Asia, Africa, the Americas, and the Mediterranean region. Worldwide reports include 1.5–2 million new cases each year, more than 300 million at ...risk of acquiring the disease, and 70,000 deaths per year. Clinical features depend on the Leishmania species and immune response of the host, varying from localized cutaneous disease to visceral form with potentially fatal outcome; however, the common presentation is either cutaneous, mucocutaneous, or visceral leishmaniasis. Many therapeutic agents are being used in Leishmania treatment, but the only effective treatment is achieved with current pentavalent antimonials. WHO considers Leishmaniasis as one of the “Neglected Tropical Diseases” that continues to be prevalent despite international, national, and local efforts towards its control and elimination over the last decade. This chapter reviews the global perspective of Leishmaniasis with increasing recognition of emerging “Atypical forms” and new surge of disease across the world mainly due to increasing conflicts in endemic areas leading to forced migration among other causes. All these challenges related to environment, disease, and vector pose major implications on WHO’s leishmaniasis control and elimination plan.
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Website last accessed on 22.05.2023
Leishmaniasis refers to a diverse group of diseases caused by single-celled parasites called Leishmania. About 12 million people are infected at any one time, causing up to 40,000 deaths annually.
The VALIDATE Network - Vaccine development for complex intra...cellular neglected pathogens
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Website last accessed on 08.05.2023
Identificar las formas de transmisión de la leishmaniasis - Youtube Video
This publication represents a key step forward in translating Control of the leishmaniases (WHO Technical Report Series, No. 949) into a more practical tool for health personnel directly involved in the case management of cutaneous leishmaniasis. With this manual, countries will have, for the first ...time, standardized diagnosis and treatment protocols, case definitions and indicators to enable them to easily track progress on cutaneous leishmaniasis case management across the Region. It will provide support to professionals in charge of cutaneous leishmaniasis, in order to alleviate the suffering of affected populations from this appalling disfiguring and stigmatizing neglected tropical disease.
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Leishmaniasis is a parasitic disease caused by the Leishmania parasite. This parasite typically lives in infected sand flies. You can contract leishmaniasis from a bite of an infected sand fly.
The sand flies that carry the parasite typically reside in tropical and subtropical environments. Fatal... epidemics have occurred in areas of Asia, East Africa, and South America.
Affected regions are often remote and unstable, with limited resources for treating this disease. Doctors Without Borders calls leishmaniasis one of the most dangerous neglected tropical diseases. The organization also states this disease is second only to malaria in parasitic causes of death.
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An interregional meeting on leishmaniasis among neighbouring endemic
countries in the Eastern Mediterranean, African and European regions was organized by the World Health Organization (WHO) Regional Office for the Eastern
Mediterranean in Amman, Jordan, from 23 to 25 September 2018. The meeting w...as attended by representatives from the health ministries of Albania, Georgia, Greece, Iran (Islamic Republic of), Iraq, Jordan, Lebanon, Morocco, Pakistan, Saudi Arabia, Sudan, Syrian Arab Republic and Tunisia. Representatives from Afghanistan, Algeria and Libya were unable to attend. The Secretariat comprised staff from WHO headquarters, WHO regional offices in the Eastern Mediterranean, Africa and Europe, WHO country offices in Iraq, Pakistan, Syrian Arab Republic and Yemen, and WHO temporary advisors from Spain and Tunisia.
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Leishmaniasis is a complex vector-borne disease involving in its transmission several species of protozoan parasites called Leishmania, a wide variety of animal reservoirs and phlebotomine sandflies vectors. Cutaneous Leishmaniasis (CL) is the most common form of the disease, and its clinical manife...stations vary from few papules to multiple ulcers affecting the skin but also the mucous membranes, leaving permanent scars and serious disability. It is a disfiguring and stigmatizing disease that often has a devastating psychosocial and economic impact on the affected resources limited communities.
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Guillain-Barre Syndrome (GBS) is an acute autoimmune polyradiculoneuropathy that often follows an antecedent infection. Leishmaniasis is a zoonosis due to a flagellate protozoan of the Leishmania genus and transmitted by the sandfly. Here we report a 15 years old teenager who presented with an ascen...ding installation of the motor deficit in three weeks associated with dysphonia and swallowing disorders. The physical examination showed a flaccid proximo-distal quadriparesis, akinesthesia, apallesthesia and cutaneous lesions on the forehead, wrist and calf that appeared two months earlier. The HIV serology was negative and cerebrospinal fluid examination was normal. The electroneuromyography showed a reduction in motor and sensitive amplitudes with an increase in distal latencies and F waves in the upper limbs and segmental and focal conduction blocks. Parasitological examination of the dermal juice around the edges of the skin lesions revealed amastigote forms of leishmaniasis. The evolution was favorable with only symptomatic treatment.
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Despite a historical association with poor tolerability, a comprehensive review on safety of antileishmanial chemotherapies is lacking. We carried out an update of a previous systematic review of all published clinical trials in visceral leishmaniasis (VL) from 1980 to 2019 to document any reported ...serious adverse events (SAEs).
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High prevalence of target diseases in rural and developing nations, increased prevalence of malnutrition across the globe, lack of hygiene and poor sanitation facilities, Migratory patterns of population, introduction of new chemical entity in the field of therapeutics, favorable government regulati...ons, and increased R&D investments are key factors contributing to high CAGR of point of care diagnostics market during the forecast period.
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Leishmaniasis is a major vector-borne disease caused by obligate intramacrophage protozoa of the genus Leishmania, and transmitted by the bite of phlebotomine female sand flies of the genera Phlebotomus and Lutzomyia, in the old and new worlds, respectively. Among 20 well-recognized Leishmania speci...es known to infect humans, 18 have zoonotic nature, which include agents of visceral, cutaneous, and mucocutaneous forms of the disease, in both the old and new worlds. Currently, leishmaniasis show a wider geographic distribution and increased global incidence. Environmental, demographic and human behaviors contribute to the changing landscape for zoonotic cutaneous and visceral leishmaniasis. The primary reservoir hosts of Leishmania are sylvatic mammals such as forest rodents, hyraxes and wild canids, and dogs are the most important species among domesticated animals in the epidemiology of this disease. These parasites have two basic life cycle stages: one extracellular stage within the invertebrate host (phlebotomine sand fly), and one intracellular stage within a vertebrate host. Co-infection with HIV intensifies the burden of visceral and cutaneous leishmaniasis by causing severe forms and more difficult to manage. The disease is endemic to Ethiopia, and the clinical signs are not pathognomic. The visceral form (Kala-azar) may be confused with other similar conditions such as malaria, tropical splenomegaly, schistosomiasis, milliary tuberculosis, and brucellosis. Similarly, cutaneous leishmaniasis should be differentiated from disease like tropical ulcers, impetigo and leprosy. There are several methods of laboratory diagnosis of leishmaniasis, including parasitological, immunological and molecular. Different forms of treatments are available including oral, parenteral, and topical medications such as pentavalent antimonials, liposomal amphotericin B, miltefosine and paromomycin. Methods of control are largely limited to destruction of animal reservoirs, treatment of infected humans, and management of sand fly populations. Development of an effective vaccine against leishmaniasis has been largely unsuccessful and hinders its prevention.
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Based on categories related to structure, content, language, and illustrations, the present study provides an evaluation of the quality of educational materials on leishmaniasis available to health services in Brazil. The 18 publications evaluated consisted of four handbooks, four guided studies, fo...ur booklets, and six leaflets. Of the total publications assessed, nine were produced by the Brazilian National Health Foundation (FUNASA), five by State and Municipal Health Departments jointly with FUNASA, and one by the Pan-American Health Organization. The evaluations were also performed by three professionals: a physician specialized in leishmaniasis, a parasitologist, and an information/communications expert. The publications failed to specify key items such as target public, objective, and bibliography. The illustrations, especially in the booklets and leaflets, failed to clarify the text, portrayed biased concepts, and omitted credits and scale. According to this study, informative materials on leishmaniasis distributed in Brazil present major limitations which jeopardize the quality of information they contain.
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In the Indian state of Bihar, visceral leishmaniasis (VL) is a major public health issue that has been aggravated by the rising incidence of new Human immunodeficiency virus (HIV) infections. In endemic areas, the risk of VL infections in patients living with HIV (PLHIV) is higher. It is important t...o investigate the disease-related knowledge, attitude, and practices (KAP) of PLHIV in Bihar in order to monitor HIV/VL co-infection. Adequate knowledge, a positive attitude, and good practices for VL control are essential to stamp out the disease. This study investigated the KAP towards VL in HIV patients attending antiretroviral therapy (ART) clinic at ICMR-RMRIMS, Patna.
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Cutaneous leishmaniasis (CL) is a parasitic disease caused by infection with a vector-borne protozoan parasite of the genus Leishmania spp. The parasite is transmitted by the bite of an infected phlebotomine sand fly. Infection results in skin lesions which take a long time to heal and may leave per...manent, disfiguring scars (de Vries et al. 2015). CL is classified as a neglected tropical disease (NTD), and in common with several other NTDs, is associated with psychosocial effects including stigma, social exclusion, and declining mental health (Bailey et al. 2019; Bennis et al. 2018; Wenning et al. 2022). Emerging evidence suggests that people with CL are at a higher risk of experiencing anxiety, depression, decreased body satisfaction, loss of social status, and lower quality of life (Bennis et al. 2018; Yanik et al. 2004). The global mean age-standardised disability-adjusted life years (DALYs) lost by CL was 0.58 per 100,000 people (Karimkhani et al. 2016). Notably, this statistic only considers the physical effects of the lesions and does not account for the potentially considerable psychological and social effects of CL (Bailey et al. 2017; Bailey et al. 2019; Wenning et al. 2022).
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Leishmaniasis is a vector-borne disease with a wide variety of parasite species, reservoirs, and vectors involved in transmission. It is caused by different species of the protozoa Leishmania and is transmitted to animals and humans through a bite of insects in the Psychodidae family. Its presence i...s directly linked to poverty, but social, environmental, and climatalogic factors directly influence the disease's epidemiology.
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Leishmaniasis is found in people in focal areas of approximately 90 countries in the tropics, subtropics, and southern Europe. The ecologic settings range from rain forests to deserts. Leishmaniasis usually is more common in rural than in urban areas, but it is found in the outskirts of some cities.... Climate and other environmental changes have the potential to expand the geographic range of the sand fly vectors and the areas in the world where leishmaniasis is found.
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Visceral leishmaniasis, the most severe form of leishmaniasis also known as kala-azar, is a life-threatening disease caused by Leishmania parasites which are transmitted by female sandflies. Visceral leishmaniasis causes fever, weight loss, spleen and liver enlargement, and, if not treated, death. P...eople with both visceral leishmaniasis and HIV are particularly difficult to cure.
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