Epidemiology
Chagas disease (American trypanosomiasis) is caused by the protozoan parasite Trypanosoma cruzi, and transmitted to humans by infected triatomine bugs, and less commonly by transfusion, organ transplant, from mother to infant, and in rare instances, by ingestion of contaminated food or... drink.1-4 The hematophagous triatomine vectors defecate during or immediately after feeding on a person. The parasite is present in large numbers in the feces of infected bugs, and enters the human body through the bite wound, or through the intact conjunctiva or other mucous membrane.
Vector-borne transmission occurs only in the Americas, where an estimated 8 to 10 million people have Chagas disease.5 Historically, transmission occurred largely in rural areas in Latin America, where houses built of mud brick are vulnerable to colonization by the triatomine vectors.4 In such areas, Chagas disease usually is acquired in childhood. In the last several decades, successful vector control programs have substantially decreased transmission rates in much of Latin America, and large-scale migration has brought infected individuals to cities both within and outside of Latin America.
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Dengue is a mosquito-borne viral disease that has rapidly spread to all regions of WHO in recent years. Dengue virus is transmitted by female mosquitoes mainly of the species Aedes aegypti and, to a lesser extent, Ae. albopictus. These mosquitoes are also vectors of chikungunya, yellow fever and Zik...a viruses. Dengue is widespread throughout the tropics, with local variations in risk influenced by climate parameters as well as social and environmental factors.
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Las enfermedades no transmisibles (ENT) suelen ser condiciones de salud de larga duración, resultado de determinantes sociales, factores genéticos, fisiológicos, ambientales y conductuales. Debido a la adquisición de hábitos poco saludables y al importante cambio demográfico, que evidencia un ...incremento de la proporción de personas mayores, ha aumentado la prevalencia de ENT y el número de muertes que generan. Por esto, constituyen uno de los principales desafíos sanitarios
del siglo XXI, tanto en los países de mayores ingresos como en aquellos en vías de desarrollo, por su gran impacto a nivel individual, en los sistemas de salud y en la economía nacional.
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La salud es un estado de perfecto (completo) bienestar físico, mental y social, y no sólo la ausencia de enfermedad. El Estado Peruano reconoce a la salud como derecho fundamental, estableciendo que toda persona tiene derecho a la protección de su salud, la del medio familiar y la de la comunidad..., así como el deber de contribuir a su promoción y su defensa. La salud es derecho en lo cual es condición indispensable del desarrollo humano y medio fundamental para alcanzar el bienestar individual y colectivo y que la protección de la salud es de interés público, por tanto, es responsabilidad del Estado regularla, vigilarla y promoverla
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This report provides updated data on suicide in the Region of the Americas and is issued every five years, this being the fourth edition. In addition to including analysis similar to previous reports (suicide according to age, sex, as well as methods used), this report includes an expanded set of an...alysis on risk factors for suicide in the Americas: the analysis of the annual age-standardized gender-specific suicide mortality rate trends over time by country and sub-region and to identify points of inflection, and evaluates the association of specific risk factors on country-level suicide mortality rates.
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Soil-transmitted helminths are a group of intestinal worms that include Ascaris lumbricoides (giant roundworm), Trichuris trichiura (whipworm), and Ancylostoma spp. (A. duodenale, A. ceylanicum) and Necator americanus (hookworms). Despite the clear biological differences among the different species,... their transmission is characterized by the same sequence of events: (i) infected individuals excrete worm eggs through their stool in soil; (ii) under optimal conditions of moisture and temperature the excreted eggs develop into infectious stages; and (iii) finally, infection occurs through oral uptake (Ascaris, Ancylostoma and Trichuris) or skin penetration (Ancylostoma and Necator) of these infectious stages (embryonated eggs and third stage larvae) that reside in the soil and/or in the environment (referring to their common name).
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23 March 2021
The meeting addressed the last key area, that is, determining the best method or combination of diagnostic methods for a control programme for S. stercoralis infections in humans.
Dr Montresor’s presentation highlighted that while there is currently no “gold standard” for the... diagnosis of S. stercoralis, there is a felt urgency to optimize diagnostic regimens that are currently available, and in the context of population-based testing (as opposed to individual focused diagnostics in clinical settings).
In other words, the diagnostic test(s) should have good accuracy, but we should remember that in public health we do not aim at individual diagnosis: rather, we need a tool that should help to estimate the prevalence in a population.
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Journal of the International AIDS Society, vol. 21 Issue no. 6 e 25142
Weaknesses in care programmes providing anti‐retroviral therapy (ART) persist and are often instigated by late HIV diagnosis and poor linkage to care. We investigated the potential for a home‐based counselling and testin...g (HBCT) campaign to be improved through the optimal timing and enhancement of testing rounds to generate greater health outcomes at minimum cost.
Countries implementing HBCT can reduce costs by optimally timing rounds and generate greater health outcomes through improving linkage, coverage, and retention. Tailoring HBCT campaigns to individual settings can enhance patient outcomes for minimal cost.
https://doi.org/10.1002/jia2.25142
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This report is jointly released by the Human Rights Division (HRD)
of the United Nations Mission in South Sudan (UNMISS) and the Office of the United Nations High Commissioner for Human Rights (OHCHR) and focuses on the right to freedom of opinion and expression in South Sudan.
It covers the per...iod from July 2016 to December 2017 and presents
information gathered by HRD on progress and challenges faced by
individuals to freely form, hold and express their opinions and
views on a wide range of issues, including the political and security situation, peace negotiations, and other developments affecting the country.
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Today there are Community-based Rehabilitation (CBR) programmes in a large number of countries. In many countries, the CBR approach is a part of the national rehabilitation services. However, there is a lack of reliable data about persons with disabilities who benefit from CBR and the kind of benefi...ts they receive. This article reviews the disability data collection systems and presents some case studies to understand the influence of operational factors on data collection in the CBR programmes. The review shows that most CBR programmes use a variable number of broad functional categories to collect information about persons with disabilities, combined occasionally with more specific diagnostic categories. This categorisation is influenced by local contexts and operational factors, including the limitations of human and material resources available for its implementation, making it difficult to have comparable CBR data. Therefore, any strategies to strengthen the data collection in CBR programmes must take these operational factors into account.
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Guiding the work of medica mondiale is an attitude of sensitivity towards both trauma and stress.
This stress- and trauma-sensitive approach has a strengthening and relieving effect on the affected
people and also the activists, specialist staff and working groups. For medica mondiale, trauma as a...
consequence of violence is not to be found exclusively in the area of (individual) psychology, but also
very significantly at the level of society and politics. For this reason, even a multi-sectoral approach
to supporting those affected by violence cannot stand alone: it must go hand in hand with measures
to bring about change in general political conditions, societal structures and public awareness.
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La resistencia a los antimicrobianos (RAM, utilizado también como equivalente de "resistente a los antimicrobianos en este documento) constituye un importante motivo de preocupación mundial en el ámbito de la salud pública y un problema para la inocuidad de los alimentos. Cuando l...os patógenos se hacen resistentes a los agentes antimicrobianos, pueden ser más peligrosos para la salud humana a causa de un posible fracaso de los tratamientos, de la pérdida de opciones para los tratamientos y de la mayor probabilidad y gravedad de las enfermedades. Los problemas relacionados con la RAM están intrínsecamente relacionados con el uso de antimicrobianos en cualquier ámbito, lo que comprende los usos humanos y no humanos. El uso de agentes antimicrobianos en animales/cultivos destinados a la producción de alimentos constituye un factor potencialmente importante de riesgo de selección y propagación a los seres humanos de microorganismos resistentes y determinantes de RAM a partir de dichos cultivos/animales a través del consumo de alimentos.
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En 2015, el 26% de los decesos de 5,9 millones de niños que murieron antes de cumplir los cinco años podría haberse prevenido
abordando los riesgos medioambientales; una impactante oportunidad perdida. El período prenatal y de la primera infancia
representa un escenario de particular vulnerabi...lidad, donde los peligros medioambientales pueden conducir al parto prematuro y otras complicaciones, y aumentar el riesgo de desarrollar una enfermedad de por vida, como enfermedades respiratorias, enfermedades cardiovasculares y cáncer. De este modo, el medio ambiente representa un factor importante en la salud infantil, así como una gran oportunidad de implementar mejoras, con efectos observados en cada región del mundo
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Cholera is a transmissible diarrhoeal infection caused by Vibrio cholerae. Endemic and/or epidemic in over 40 countries (mainly in Africa and Asia), cholera continues to be a major global public health issue.
The World Health Organization (WHO) estimates that the number of cases reported worldwid...e represents in reality only 5 to 10% of actual cases.
This guide is intended for medical and non-medical staff responding to a cholera outbreak. It attempts to provide concrete answers to the questions and problems faced by staff, based on the recommendations of reference organisations, such as WHO and UNICEF, as well as Médecins Sans Frontières’ experience in the field.
It is divided into 8 chapters. Chapter 1, Cholera overview, outlines the epidemiological and clinical features of cholera. Chapter 2, Outbreak investigation, explains the method and stages of a field investigation, from the alert to implementation of initial activities. Chapter 3, Cholera control measures, details measures and tools to prevent and/or control cholera transmission and mortality in populations affected, or at risk of being affected, by an epidemic (curative care, prevention means and health promotion activities). Chapter 4, Strategies for epidemic response, addresses the roll-out strategies of the measures described in Chapter 3 which depend on context (e.g. urban, rural, endemic, non-endemic setting, etc.), resources and particular constraints. Chapter 5, Cholera case management, details the different stages of cholera treatment, from diagnosis through to cure.
Chapter 6, Setting up cholera treatment facilities, focuses on the installation of treatment facilities that vary in size and complexity according to operational requirements (treatment centres and units and oral rehydration points). Chapter 7, Organisation of cholera treatment facilities, describes the organisation of these specialized facilities in terms of human resources, supply, water, hygiene and sanitation, etc. Chapter 8, Monitoring and evaluation, presents the key data to be collected and analysed during an epidemic to facilitate a tailored response and evaluate its quality and effectiveness.
The guide includes various practical tools in the appendices to facilitate activities (e.g. water quality tests, job descriptions, documents, etc.). Moreover, the toolbox also contains additional tools in editable formats (individual patient file, cholera case register, pictograms).
Despite all efforts, it is possible that certain errors may have been overlooked in this guide. Please inform the authors of any errors detected.
To ensure that this guide continues to evolve while remaining adapted to field realities, please send any comments or suggestions.
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Fully functioning water, sanitation, hygiene (WASH) and health care waste management services are a critical aspect of infection prevention and control (IPC) practices, and ensuring patient safety and quality of care. Such services are also essential for creating an environment that supports the dig...nity and human rights of all care seekers, especially mothers, newborns, children and care providers.
WASH and waste services are also critical for preventing and effectively responding to disease outbreaks. The COVID-19 pandemic has exposed gaps in these basic services (Box 1). These gaps threaten the safety of patients and caregivers, and have environmental consequences, especially as a result of large increases in plastic health care waste. In short, WASH is a critical foundation for improving quality across the health system (1).
Many facilities lack plans and budgets for WASH, which has impacts on IPC. This lack of services, and of systems to improve them, compromises the ability to provide safe and quality care, and places health care providers and those seeking care at substantial risk of infection and loss of dignity. Unhygienic health care facilities without drinking water or functional toilets are also a disincentive to seeking care and undermine staff morale – these factors can have a critical impact on controlling infectious disease outbreaks.
Climate change and its impacts on WASH and health services, gender-specific needs, and equity in service provision and management all require rigorous attention, adaptable tools and regular monitoring.
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Food environments are usually defined as the settings with all the different types of
food made available and accessible to people as they go about their daily lives.
That is, the range of food in supermarkets, small retail outlets, wet markets, street
food stalls, coffee shops, tea houses, s...chool canteens, restaurants, and all the other
venues where people buy and eat food. These environments differ enormously depending on the context. They can be extensive and diverse, with a seemingly endless array of options and price ranges, or they can be sparse, with very few options on offer. Because they determine what food consumers can access at a given moment in time, at what price, and with what degree of convenience, food environments both constrain and prompt the consumer’s choice.Food environments are influenced by the food systems which supply them, and vice versa. Food systems encompass the entire range of activities, people and institutions involved in the production, processing,
marketing, consumption and disposal of food (FAO, 2013). They include but are not limited to food supply chains. Making food systems nutrition-sensitive can contribute to addressing all forms of malnutrition, as food systems determine whether the food needed for good nutrition are available, affordable, acceptable and of adequate
quantity and quality. How closely food systems and food environments are interrelated and interdependent, and the degree to which external factors affect nutrition outcomes, varies from setting to setting.Many of today’s food systems
and food environments are challenged in supporting consumer choices that are
consistent with healthy diets and good nutrition. Consumers are not making choices based on nutrition and health, and poor diet is now the number one risk factor for death and disability worldwide (GBD, 2015). Food systems that do not enable healthy diets are increasingly recognized as an underlying cause of malnutrition (GLOPAN, 2016), and malnutrition, irrespective of form, has a huge cost. Economic costs associated with undernutrition are estimated at $1-2 trillion per year, about 2-3% of global GDP (FAO, 2013); the global economic cost of obesity and associated diet-related non-communicable diseases is estimated at $2 trillion per year, about 2.8% of global GDP (McKinsey, 2014). Influencing food environments for promoting healthy diets is an emerging strategy to address today’s nutrition challenges.
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