Chagas disease, or American trypanosomiasis, is an illness that can cause serious heart and stomach problems. It is caused by a parasite. Chagas disease is common in Latin America, especially in poor, rural areas. It can also be found in the United States, most often in people who were infected befo...re they moved to the U.S.
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The speed of developing diagnostics for SARS-CoV-2, the causative agent of coronavirus disease 2019 (COVID-19), has been quite remarkable. Diagnostics have focused on nucleic acid amplification testing (NAAT) to identify infected individuals in acute-phase disease for timely implementation of mitiga...tion strategies and case management. More and more immunodiagnostics, mostly rapid diagnostic tests, are being made available as an alternative to NAATs. This type of test can be used out-of-laboratory conditions at large scale.
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The aim of this document is to support public health preparedness planning with regard to personal protective equipment (PPE) needs in healthcare settings where patients suspected or confirmed to have been infected with the novel coronavirus 2019-nCoV are being treated.
Tuberculosis (TB) is among the top ten most common causes of death globally and as a single infectious disease it top among infectious diseases. Furthermore, it is noted as the top causes of death among people infected with the human immunodeficiency virus (HIV). Despite recent decreases in the numb...er of notified cases, Namibia still has a high TB burden and is included among the top 30 high-burden TB countries by the World Health Organisation (WHO). In the 2018 Global TB Report, the estimated incidence rate of TB in Namibia was 423/100,000. The same report estimated that 60 people per 100,000 populations died of TB in Namibia, which is a concern, for a disease that is curable and preventable.
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Visión de conjunto:
El ciclo de transmisión
Teniasis. Las tenias viven en los intestinos de las personas infectadas. Los huevos de la tenia se liberan con las heces. Si se defeca al aire libre, se puede contaminar el ambiente (incluyendo los vegetales y el agua). Cisticercosis humana. La inges...tión de huevos de la tenia (debido a una mala higiene después de ir al baño o al consumir alimentos o agua contaminados), resulta en quistes del parásito principalmente en el cerebro (causando convulsiones y epilepsia). Cisticercosis porcina. Los cerdos que ingieren huevos de tenia (presentes en las heces o en el medio ambiente) desarrollan quistes del parásito, principalmente en los músculos (carne). La carne infectada contiene quistes del parásito, que no siempre son fáciles de ver. Comer carne de cerdo infectada cruda o poco cocinada hará que las personas desarrollen tenias.
Las medidas de prevención y control
Tratar la infección por teniasis con medicamentos indicados por el personal de salud. Lavarse las manos con agua y jabón después de ir al baño. Lavar bien las verduras o cocinarlas antes de comerlas. Utilizar los baños o letrinas para evitar infectar el ambiente, los cerdos y otras personas. Mantener a los cerdos en corrales para evitar que se infecten. Vacunar y tratar a los cerdos para prevenir la infección. La inspección de la carne puede identificar a los cerdos altamente infectados. Cocinar bien la carne de cerdo (no debe verse el color rosa) para matar el parásito.
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Orientaciones provisionales para los dispensadoresde atención de la salud. En el presente documento se ofrecen orientaciones a los dispensadores de atención de la salud (por ejemplo, médicos y enfermeros) sobre el modo de brindar, principalmente a las mujeres infectadas por el virus ...de Zika durante el embarazo y a sus familiares, una respuesta de apoyo que satisfaga sus necesidades psicosociales y de salud mental.
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Cette vidéo éducative explique le cycle de vie du parasite Plasmodium, responsable du paludisme. Transmis par la piqûre de la femelle du moustique Anopheles, le parasite infecte d'abord le foie, puis les globules rouges, provoquant des symptômes typiques tels que des frissons, de la fièvre et d...es sueurs.
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Cette vidéo éducative explique le cycle de vie du parasite Plasmodium, responsable du paludisme. Transmis par la piqûre de la femelle du moustique Anopheles, le parasite infecte d'abord le foie, puis les globules rouges, provoquant des symptômes typiques tels que des frissons, de la fièvre et d...es sueurs.
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Chagas disease is a parasitic, systemic, and chronic disease caused by the protozoan Trypanosoma cruzi, with risk factors strongly link to low socioeconomic factors. Chagas disease is considered a neglected tropical disease. It is endemic in 21 countries in the Americas, although the migration of in...fected people can transport the disease to non-endemic countries of America and the world.
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The IFRC Psychosocial Centre has published a guidance note providing an overview of the psychosocial consequences of virus outbreaks, with a focus on mpox, and outlines key considerations for MHPSS programming.
The current mpox outbreaks present numerous challenges for responding National Societi...es. A key issue is addressing stigma as individuals infected, or suspected of having mpox may experience social ostracization, discrimination, and even violence. In many African communities, where cultural and social norms are vital to community health, considering the cultural and psychosocial implications of virus outbreaks is integral for effective disease management. In addition, Red Cross Red Crescent staff and volunteers may be personally exposed and working in complex environments with rumours and misinformation generating fear and anxiety. This guidance addresses the key mental health and psychosocial support implications of the ongoing mpox crisis.
Guleed Dualeh, MHPSS Advisor
This guidance note is intended for Red Cross Red Crescent National Societies and IFRC departments who may be responding to mpox in their country, or region. It includes guidance on:
Common reactions and behaviours in epidemics
Caring for staff and volunteers in health emergencies
Integration of MHPSS considerations for into health responses
Links to existing relevant materials
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Rabies is entirely preventable, and vaccines, medicines, tools and technologies have long
been available to prevent people from dying of dog-mediated rabies. Nevertheless, rabies still
kills about 60 000 people a year, of whom over 40% are children under 15, mainly in rural areas
of economically ...disadvantaged countries in Africa and Asia. Of all human cases, up to 99% are
acquired from the bite of an infected dog.
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The American Jornal of Tropical Medicine and Hygiene, vol. 105, no.6, pp.1772-1781.
Schistosomiasis, which is the second most important parasitic infection after malaria in terms of its socioeconomic impact, is responsible for the loss of an estimated 4.5 million disability-adjusted life years (DA...LYs) worldwide. Schistosomiasis, including both intestinal and urinary forms of the disease, occurs in 78 countries across the globe. An estimated 240 million people are infected, with more than 779 million living at risk globally. The majority of those infected and those at risk for infection live in low-income countries, and approximately 80% of the morbidity occurs in impoverished communities and households in sub-Saharan Africa. Within Uganda, 91 of the 134 districts are endemic for intestinal schistosomiasis caused by Schistosoma mansoni, and the eastern region, especially along Lake Victoria, has one of the highest S. mansoni burdens worldwide. Schistosoma haematobium is only endemic in the five districts of the Lango region in northern Uganda.
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This threat assessment addresses the implications of the ongoing Marburg virus disease (MVD) outbreak in
Rwanda for the European Union/European Economic Area (EU/EEA). MVD is a severe disease in humans and,
although uncommon, it has the potential to cause epidemics with significant case fatality. ...All recorded MVD
outbreaks to date have originated in Africa. MVD is not an airborne disease and is considered not to be
contagious before symptoms appear. Direct contact with the blood and other body fluids of infected people
and animals or indirect contact with contaminated surfaces and materials like clothing, bedding and medical
equipment is required for transmission. The risk of infection is minimised when proper infection prevention and
control precautions are strictly followed. There is no approved treatment or vaccine for MVD; however, several
pharmaceuticals and candidate MVD vaccines are under investigation.
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Schistosomiasis, also known as Bilharzia, is an infection caused by a parasitic worm that lives in fresh water in subtropical and tropical regions. Schistosomiasis is second only to malaria as the most devastating parasitic disease. The parasites that cause schistosomiasis live in certain types of f...reshwater snails. The infectious form, known as cercariae, emerge from the snail and then contaminate the water. People become infected when their skin comes into contact with the contaminated freshwater. Most human infections are caused by Schistosoma mansoni, Schistosoma haematobium, or Schistosoma japonicum.
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Chagas disease (American trypanosomiasis) is endemic in 21 countries of the Americas, where control is largely focused on elimination of the domestic insect vectors (Triatominae) coupled with measures to extend and improve the screening of blood donors in order to avoid tranfusional transmission. Th...rough national programmes and multinational initiatives coordinated by WHO-PAHO, much has been accomplished in these domains in terms of reducing transmission. Attention now turns to consolidating the successes in interrupting transmission, and improved treatment for those already infected and those who may become affected in the future. This article, based on technical discussions at the "Epidemiological and Sociological Determinants of Chagas Disease, Basic Information to Establish a Surveillance and Control Policy " meeting in Rio de Janeiro, is designed to open the debate on appropriate strategies for continuation of the successful initiatives against Chagas disease.
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A century after its discovery, Chagas' disease still represents a major public health challenge in Latin America. Moreover, because of growing population movements, an increasing number of cases of imported Chagas' disease have now been detected in non-endemic areas, such as North America and some E...uropean countries. This parasitic zoonosis, caused by Trypanosoma cruzi, is transmitted to humans by infected Triatominae insects, or occasionally by non-vectorial mechanisms, such as blood transfusion, mother to fetus, or oral ingestion of materials contaminated with parasites. Following the acute phase of the infection, untreated individuals enter a chronic phase that is initially asymptomatic or clinically unapparent. Usually, a few decades later, 40-50% of patients develop progressive cardiomyopathy and/or motility disturbances of the oesophagus and colon. In the last decades several interventions targeting primary, secondary and tertiary prevention of Chagas' disease have been attempted. While control of both vectorial and blood transfusion transmission of T cruzi (primary prevention) has been successful in many regions of Latin America, early detection and aetiological treatment of asymptomatic subjects with Chagas' disease (secondary prevention) have been largely underutilised. At the same time, in patients with established chronic disease, several pharmacological and non-pharmacological interventions are currently available and have been increasingly used with the intention of preventing or delaying complications of the disease (tertiary prevention). In this review we discuss in detail each of these issues.
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Chagas disease is caused by Trypanosoma cruzi. Infection is transmitted to humans when bitten by Triatominae (reduviid, kissing, or assassin) bugs in South and Central America, Mexico, and very rarely in the US. Less commonly, T. cruzi is transmitted via ingestion of sugar cane juice or food contami...nated with infected Triatominae bugs or their feces, transplacentally from an infected mother to her fetus, or via blood transfusion or an organ transplant from an infected donor.
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Taenia saginata is a zoonotic tapeworm that is of economic importance in countries where cattle are kept. The parasite is transmitted from human tapeworm carriers (taeniosis) to bovines (cysticercosis) by excretion of eggs or proglottids containing eggs into the environment via the stool. Bovines ca...n then ingest the eggs through contaminated feed or water. After ingestion, the eggs hatch and release oncospheres in the small intestines, where the oncospheres penetrate the intestinal wall to reach the blood circulation. This distributes them throughout the body, but primarily to muscle tissue, where they develop into cysticerci. For humans to become infected with T. saginata, raw or undercooked bovine meat or offal containing infective cysts must be consumed. Bovine cysticercosis has been associated with various environmental factors related to water sources, such as animals having access to surface water, flooding of pastures and proximity to wastewater sources.
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Dengue is a significant public health problem. There are four dengue virus serotypes identified; however, its diagnosis is difficult due to the existence of many viruses, bacteria, and parasites producing the same clinical presentation, being present in the same geographical area and even producing ...coinfections. Therefore, determining whether a person has, had, or is infected with dengue virus is of great importance. In order to do so, direct and indirect laboratory tests have been developed to identify the virus or part of its structure that generally detects the antibody response. These techniques are used for diagnosis, epidemiological studies, monitoring, assessment and production of vaccines and antivirals, etc. They range from the use of cell cultures, animal models, inoculation by insects, and serology tests to the use of detection molecular tests and quantification of genetic material that are described in this chapter herein, a brief explanation of this methodology, its strengths and weaknesses, and its application in the dengue research.
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19 April 2020
To contain the spread of COVID-19 and to keep infections at a manageable level, many countries have instituted lockdowns and social distancing. In India, a nationwide 21-day lockdown was announced with effect from 25 March 2020. This lockdown is expected to avert a sudden and large in...crease in the number of infections in the short term. Additionally, interventions such as social distancing and isolation of infected individuals over several months could reduce peak infections. Interventions such as frequent handwashing, reduced mass gatherings, contact tracing, and quarantines could slow transmission and reduce overall infections.
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