For the molecular diagnosis of Chagas disease by real-time PCR (polymerase chain reaction), optimization of diagnostic accuracy is desirable. The detection limit of real-time PCR assays for the diagnosis of Trypanosoma cruzi in human serum is affected by various influences including the choice of th...e nucleic acid extraction assay. In this study, three nucleic acid extraction assays were compared regarding their influence on the sensitivity of a T. cruzi-specific real-time PCR with 62 reference sera containing T. cruzi target DNA (deoxyribonucleotide acid). More than 95% of the positive sera were correctly identified after all three nucleic acid extraction strategies with a detection rate ranging from 96.8% (60/62) for the worst assay to 100% (62/62) for the best one. A matched pairs analysis for the comparison of the cycle threshold (Ct) values obtained with the 59 reference samples with positive real-time PCR results after all three nucleic acid extraction schemes indicated differences in a range of about 3 Ct steps. Summarized, all three compared nucleic acid extraction schemes were basically suitable for T. cruzi-specific PCR from serum with some minor differences. However, in the case of low quantities of circulating parasite DNA in the serum of a patient with Chagas disease, even minor effects can make a difference in the individual diagnosis.
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After 100 years of chemotherapy with impractical and toxic drugs, an oral cure for human African trypanosomiasis (HAT) is available: Fexinidazole. In this case, we review the history of drug discovery for HAT with special emphasis on the discovery, pre-clinical development, and operational challenge...s of the clinical trials of fexinidazole. The screening of the Drugs for Neglected Diseases initiative (DNDi) HAT-library by the Swiss TPH had singled out fexinidazole, originally developed by Hoechst (now Sanofi), as the most promising of a series of over 800 nitroimidazoles and related molecules. In cell culture, fexinidazole has an IC50 of around 1 µM against Trypanosoma brucei and is more than 100-fold less toxic to mammalian cells. In the mouse model, fexinidazole cures both the first, haemolymphatic, and the second, meningoencephalitic stage of the infection, the latter at 100 mg/kg twice daily for 5 days. In patients, the clinical trials managed by DNDi and supported by Swiss TPH mainly conducted in the Democratic Republic of the Congo demonstrated that oral fexinidazole is safe and effective for use against first- and early second-stage sleeping sickness. Based on the positive opinion issued by the European Medicines Agency in 2018, the WHO has released new interim guidelines for the treatment of HAT including fexinidazole as the new therapy for first-stage and non-severe second-stage sleeping sickness caused by Trypanosoma brucei gambiense (gHAT). This greatly facilitates the diagnosis and treatment algorithm for gHAT, increasing the attainable coverage and paving the way towards the envisaged goal of zero transmission by 2030.
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Urogenital schistosomiasis is a common neglected tropical disease in many rural communities in African countries, with patches of infection in the Eastern Mediterranean Region. Globally, an estimated 239 million people are currently infected, with burden estimated at more than 3.5 million disability...-adjusted life years (DALYs). In many endemic areas, severely infected individuals may suffer fibrosis of the bladder, kidney damage, bladder cancer, and death if untreated. This, however, depends on several factors such as host-parasite genetics, degree and length of exposure, intensity of infection, host immune response to the parasites, and coinfections with other tropical diseases such as malaria and HIV-1.
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Microorganisms . 2022 Jul 14;10(7):1427.
Chagas disease (CD) is endemic in about 21 countries of the Americas. The disease has spread to recently Chagas-free regions, mainly due to migration, and can now also be diagnosed in countries such as the USA, Canada, many European and some African, eastern... Mediterranean and western Pacific countries. About 6 million people are infected and 70 million live with a daily risk of infection. Although many efforts have been made to control the disease, and some improvements were achieved, still, less than about 1% of the infected have access to diagnosis and treatment. This causes high morbidity and mortality rates with more than 12,000 deaths per year
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There are not many world citizens who do not have their children’s and their own health as a top priority. So why is health not more prominent topic in the debate on climate change and its impacts? We hear a lot about polar bears and smokestacks in the media, but very little on the many and the la...rge health impacts of climate change. With this MOOC, we want to provide state-of-the art evidence of the link between climate change and the health of populations.
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The Knowledge Translation Unit is a group within the University of Cape Town’s Lung Institute and Department of Medicine who has worked on primary care programmes to strengthen provision of evidence-informed care in low-resources settings in South Africa, Ethiopia, Nigeria and Brazil for two decad...es. See here for more information. We are working around the clock to help health workers in these and similar settings to manage the COVID-19 pandemic. These can be accessed below. We are also working to expand these to support primary healthcare workers, patients and households. You can also access our free online training.
For purposes of assisting communities during the COVID-19 pandemic, we are making our COVID-19 and related materials freely available for others to use subject to some simple conditions.
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In this course, you will learn about this virus and the sickness scientists call COVID-19. What is it, where did it come from, what might it mean for you?
This course was written to help people with low health and science literacy be more prepared for the COVID-19 epidemic. If you feel so incline...d, please share. The course is Creative Commons license with attribution, so feel free to re-use as you see fit.
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Helping Children Live with HIV offers a holistic approach by building on the existing knowledge of parents and caregivers and respecting the importance of other local resources. It integrates health care, illness prevention, and psychosocial support for children and families coping with poverty, foo...d insecurity, emotional trauma, loss, as well as stigma and discrimination.
This guide is intended for broad use by parents, family members, and health workers in home settings and throughout community-based health programs.
To learn more, view the table of contents and a sample chapter, and to buy your copy of this essential new resource from Hesperian.
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You can download the handbook, worksheets and quick reference cards from the website!
The HHEAT is an ethical analysis tool designed to help humanitarian healthcare workers make ethical decisions. It consists of 3 components: (1) a summary card highlighting key questions, (2) a handbook providing a...n overview of the tool, and (3) a worksheet for recording the decision-making process. The tool was inspired by research examining ethical challenges and moral distress experienced by humanitarian workers. The HHEAT has been tested and validated by humanitarian workers and experts from the fields of humanitarian medicine and nursing, as well as applied ethics.
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La lutte contre la tuberculose est une des priorités du ministère de la santé. C’est ainsi que le Plan Stratégique National de lutte contre la Tuberculose 2013-2017 du Sénégal a inscrit dans son programme d’actions la préoccupation de mieux d’améliorer la prise en charge des personnes ...vulnérables, dont les prisonniers. L’état de santé est un indicateur clef du bien être de la société, et les prisons servent de miroir. Une bonne compréhension des conditions sanitaires des détenus pourrait contribuer à améliorer le système de santé publique d’un pays. L’environnement carcéral est bien reconnu comme un lieu où les conditions de vie sont propices à la concentration de l’ensemble des maladies de la société, en premier lieu, les morbidités infectieuses.
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Psiquiatría Infantil y Pediatría
Capítulo I.1
Editores: Azucena Díez-Suárez y Matías Irarrázaval
Traductores: Cecilia Hernández González, Ana Mena Morales, Ana Alvarado Dafonte
The report “Dementia: a public health priority” has been jointly developed by WHO and Alzheimer's Disease International. The purpose of this report is to raise awareness of dementia as a public health priority, to articulate a public health approach and to advocate for action at international a...nd national levels.
Dementia is a syndrome that affects memory, thinking, behaviour and ability to perform everyday activities. The number of people living with dementia worldwide is currently estimated at 35.6 million. This number will double by 2030 and more than triple by 2050. Dementia is overwhelming not only for the people who have it, but also for their caregivers and families. There is lack of awareness and understanding of dementia in most countries, resulting in stigmatization, barriers to diagnosis and care, and impacting caregivers, families and societies physically, psychologically and economically.
Available Languages: Chinese, English, Japanese, Russian and Spanish
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The global epidemic of type 2 Diabetes Mellitus (T2DM) presents significant challenges to world health both in terms of financial costs as well as morbidity. Thus, considerable research has been focussed on the prevention or delay of the onset of T2DM.
Type 2 Diabetes Mellitus (T2DM) is one of the ...most costly and burdensome of chronic diseases and is a global epidemic. Estimates by the International Diabetes Federation indicate that 387 million people have diabetes, and that this figure is expected to rise to 592 million by 2035 with an additional 175 million cases currently undiagnosed.
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In 2012, all Member States of the World Health Organization (WHO) endorsed a historical target to reduce premature mortality from noncommunicable diseases
(NCD). This commitment was echoed in 2015 by the United Nations Sustainable Development Goals, which included a target to reduce premature morta...lity (the
measure of unfulfilled life expectancy and deaths between the ages of 30 and 70 years) from NCD by 30% by the year 2030. The Sustainable Development Goals are especially relevant to cardiovascular disease (CVD), the leading cause of death globally, with increasing prevalence in low- and middle-income countries (LMIC).
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Non-communicable diseases (NCDs) are of increasing concern for society and national governments, as well as globally due to their high mortality rate. The main risk factors of NCDs can be classified into the categories of self-management, genetic factors, environmental factors, factors of medical co...nditions, and socio-demographic factors.
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Leishmaniasis is a vector-borne disease with a broad global distribution and an increasing number of recorded cases worldwide. However, it is still one of the world's most neglected diseases. Over the last decades, the disease has been found to expand geographically with a global increase of cases o...f visceral and cutaneous leishmaniasis increasing the public health problems associated with the disease epidemics. The reported range expansion of the diseases has been associated with range expansions of vector populations in response to climate change. Leishmaniasis is caused by protozoan parasites of the genus Leishmania. The transmission can either be zoonotic and/or anthroponotic through the bite of an infected female phlebotomine sandfly. In Eurasia and Africa, all vector-competent sandfly species belong to the genus Phlebotomus. Cutaneous leishmaniasis (CL) is the most common form of leishmaniasis. In the ‘old world’, it is caused by five currently recognized Leishmania species: L. major, L. tropica and L. aethiopica (being main causative parasites) as well as L. infantum and L. donovani. Visceral leishmaniasis (VL), another common and more severe form of leishmaniasis, is only associated with the Leishmania species L. infantum and L. donovani. The specific Leishmania species cause different clinical symptoms in humans.
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MEDBOX Issue Brief no.23.
The intent of this Issue Brief is to raise awareness about heat waves as a result of climate change and its impact on
health. More information on the topic of climate change and planetary health you can find in our PLANETARY
HEALTH TOOLBOX www.planetaryhealthbox.org
MEDBOX Issue Brief No.17, 21 November 2021
Women's cancers have a significant impact on women's health worldwide. According to the World Health Organisation, nearly three million women are diagnosed with breast or cervical cancer every year. In this Issue Brief you will find more information.
Millions of children are at increased risk of harm as their lives move increasingly online during lockdown in the COVID-19 pandemic, UNICEF and partners said today.
“The coronavirus pandemic has led to an unprecedented rise in screen time,” said Global Partnership to End Violence Executive Dire...ctor Dr. Howard Taylor. “School closures and strict containment measures mean more and more families are relying on technology and digital solutions to keep children learning, entertained and connected to the outside world, but not all children have the necessary knowledge, skills and resources to keep themselves safe online.”
April 2020
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The Lancet Planetary Health Volume 4, ISSUE 12, e566-e576, December 01, 2020. Exposure to temperature variability has been associated with increased risk of mortality and morbidity. We aimed to evaluate whether the association between short-term temperature variability and hospitalisation was affect...ed by local socioeconomic level in Brazil.
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