Chagas disease caused by Trypanosoma cruzi is a public health issue in Latin America. This highly diverse parasite is divided into at least seven discrete typing units (DTUs) TcI-TcVI and Tcbat. Some DTUs have been associated with geographical distribution in epidemiological scenarios and clinical m...anifestations, but these aspects remain poorly understood. Many studies have focused on studying the parasite and its vectors/hosts, using a wide variety of genetic markers and methods. Here, we performed a systematic review of the literature for the last 20 years to present an update of DTUs distribution in the Americas, collecting ecoepidemiological information. We found that the DTUs are widespread across the continent and that there is a whole gamma of genetic markers used for the identification and genotyping of the parasite. The data obtained in this descriptor could improve the molecular epidemiology studies of Chagas disease in endemic regions.
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Este manual se ha elaborado en el marco de la Iniciativa Global de la Organización Mundial de la Salud (OMS) para el Cáncer Infantil, CureAll Americas, con el propósito de mejorar la situación de los niños, niñas y adolescentes con cáncer en todo el mundo, para que puedan tener las mejores po...sibilidades de sobrevida, disfrutar de una vida plena y, sobre todo, alcanzar la mejor calidad de vida posible y morir sin sufrimiento. Está dirigido a los profesionales de la salud que se dedican al tratamiento de pacientes oncológicos pediátricos y que, directa o indirectamente, deben enfrentarse con las complicaciones que pueda causar el tratamiento a todos los niveles. Su contenido puede contribuir a la realización de un diagnóstico más certero de las alteraciones de la cavidad oral, así como al desarrollo de estrategias para la prevención y el tratamiento de estas manifestaciones. No se establecen orientaciones directas para responsables parentales ni cuidadores, pero sí se presenta información que sirve como guía para el cuidado bucal, de acuerdo con la estructura y la composición de los equipos de los distintos centros de tratamiento contra el cáncer.
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Onchocerciasis used to be an important public health problem in Africa, with over 37 million people infected and millions suffering from debilitating skin disease, terrible itching, impaired vision and
blindness. But the epidemiological situation has improved dramatically over the last two decades.... Community directed treatment with ivermectin has effectively brought the disease under control in most endemic areas where onchocerciasis is no longer a public health risk.
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This perspective draws on the record of ancient pathogengenomes and microbiomes illuminating patterns of infectious disease over the course of the Holocene in order toaddress the following question. How did major changes inliving circumstances involving the transition to and intensification of farmi...ng alter pathogens and their distributions? Answers to this question via ancient DNA researchprovide a rapidly expanding picture of pathogen evolution and in concert with archaeological and historical data, give a temporal and behavioral context for heath in the past that is relevant for challenges facing the world today, including the rise of novel pathogens.
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Leptospirosis, a spirochaetal zoonosis, occurs in diverse epidemiological settings and affects vulnerable populations, such as rural subsistence farmers and urban slum dwellers. Although leptospirosis is a life-threatening disease and recognized as an important cause of pulmonary haemorrhage syndrom...e, the lack of global estimates for morbidity and mortality has contributed to its neglected disease status
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In one of his final essays, statesman and former United Nations secretary general Kofi Annan said, ‘Snakebite is the most important tropical disease you’ve never heard of’. Mr. Annan firmly believed that victims of snakebite envenoming should be recognised and afforded greater efforts at impro...ved prevention, treatment, and rehabilitation. During the last years of his life, he advocated strongly for the World Health Organisation (WHO) and the global community to give greater priority to this disease of poverty and its victims.
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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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Yaws is targeted for eradication by 2030, using a strategy based on mass drug administration (MDA) with azithromycin. New diagnostics are needed to aid eradication. Serology is currently the mainstay for yaws diagnosis; however, inaccuracies associated with current serological tests makes it difficu...lt to fully assess the need for and impact of eradication campaigns using these tools. Under the recommendation of the WHO Diagnostic Technical Advisory Group (DTAG) for Neglected Tropical Diseases(NTDs), a working group was assembled and tasked with agreeing on priority use cases for developing target product profiles (TPPs) for new diagnostics tools.
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Schistosomiasis is widely recognized as a disease that is socially determined. An
understanding of the social and behavioural factors linked to disease transmission and
control should play a vital role in designing policies and strategies for schistosomiasis
prevention and control. To this must b...e added the awareness that schistosomiasis is
also a disease of poverty. It still survives in poverty-stricken, remote areas where there
is little or no safe water or sanitation, and health care is scarce or non-existent. For
a variety of complex reasons, many of which are addressed in this book, the disease
is particularly prevalent in sub-Saharan Africa, and persists in certain areas of rural
China. This concern for human behaviour in an environment of poverty echoes the
concerns of the new research priority for “diseases of poverty” identified by the
Special Programme for Research & Training in Tropical Diseases.
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Rabies is fatal, vaccine-preventable disease responsible for an estimated 59,000 human deaths each year. Most cases are transmitted by dogs, and most deaths occur in underserved populations in Africa and Asia. Approximately 40% of deaths occur in children.
Rabies has an enormous impact on both agriculture and conservation biology, but its greatest burden is undeniably on public health. As such, routine methods for rapid risk assessment after human exposures to rabies as well as applications for laboratory-based surveillance, production of biologicals ...and management of this infectious disease are critical. Given its mandate to improve human health and control disease among its Member States, WHO has led the production of this fifth edition of Laboratory techniques in rabies.
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National Guidelines on Nutrition, Care, Support, and Treatment (NCST) for Adolescents and Adults
These guidelines are intended to:
• Establish a consistent set of nutrition interventions and recommendations aimed at managing and preventing undernutrition and overnutrition in adolescents and ad...ults, with a focus on people with HIV/AIDS and tuberculosis (TB) patients.
• Provide simple and clear guidance to service providers and managers on how to implement the nutrition interventions and recommendations at the various health care delivery contact points.
• Provide a framework for policymakers and development partners to use when planning nutrition interventions for adolescent and adults.
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The longlist of knowledge gaps is based on existing research agendas published in 2015 or later and expert input from reviewers of the first draft of the longlist. It only includes knowledge gaps focussing on a better
understanding of the relationship between global environmental change and human h...ealth, and finding an answer to the question of how best to protect human health against these new threats.
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Training in monitoring and epidemiological assessment of mass drug administration for eliminating lymphatic filariasis: learners’ guide. World Health Organization.
En 1998, la Cinquante-et-Unième Assemblée mondiale de la Santé a adopté la résolution
WHA51.11 qui vise l’élimination mondiale du trachome en tant que problème de santé publique
à l’horizon 2020 (1). La stratégie recommandée pour atteindre cet objectif est récapitulée dans
le sig...le « CHANCE » qui signifie CHirurgie pour les personnes atteintes de trichiasis
trachomateux (TT – le dernier stade cécitant du trachome) ; Antibiothérapie, Nettoyage du
visage et Changements Environnementaux (2). Les interventions relatives aux volets A, N et CE
sont menées dans des districts entiers dans lesquels les cas de trachome évolutif
(inflammatoire) sont courants, dans le but de traiter les infections oculaires dues à Chlamydia
trachomatis, l’agent pathogène à l’origine du trachome, et de réduire durablement sa
transmission.
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La quincuagésima primera Asamblea de la Salud Mundial aprobó la resolución WHA51.11 en
1998, que busca la eliminación mundial del tracoma como problema de salud pública para el 2020
(1). La estrategia recomendada para lograr ese objetivo está encapsulada por las siglas "SAFE", que
represent...a: La cirugía para los individuos con triquiasis tracomatosa (TT; la última etapa que causa
ceguera por tracoma); y Antibióticos, Limpieza Facial y Mejoramiento ambiental (2). Las
intervenciones A, F y E se llevan a distritos enteros en los que el tracoma activo (inflamatorio) es
común para tratar la infección ocular causada por Chlamydia trachomatis, el agente causal del
tracoma y reduce de manera sustentable su transmisión.
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It is impossible to address the many complex needs of respiratory virus surveillance with a single surveillance system. Multiple systems, investigations and studies must each be fit-for-purpose to specific priority surveillance objectives, and only together can they provide essential information to ...policy-makers. In essence, each surveillance approach fit together as “tiles in a mosaic” that provides a complete picture of respiratory viruses and the impact of associated illnesses and interventions at the country level. This mosaic framework demonstrates how surveillance approaches may be implemented as coordinated and collaborative systems, well-matched to specific priority objectives.
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The Operational guide: use of referral laboratories for the analysis of foodborne hazards in the Pacific aims to strengthen the food analysis capacity of Pacific Island countries and areas by identifying national and reference laboratories capable of testing for priority foodborne hazards. The Pacif...ic Island countries and areas are often vulnerable to food safety incidents and emergencies due to their geographical distribution and dependence on food imports. The guide outlines key considerations for selecting referral laboratories and submitting samples to them, enabling continuous improvement of food safety systems and providing safe food for all. The target audiences are health and food safety authorities.
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Integrating the prevention and control of noncommunicable diseases in HIV/AIDS, tuberculosis, and sexual and reproductive health programmes: implementation guidance
The application of digital health technology is growing at a rapid rate in Africa, with the goals of improving the delivery of healthcare services and more effectively reaching out to remote and underserved communities. The lack of enabling guidelines and standards across the continent, on the other... hand, makes it difficult to share data in a meaningful way across the continent.
Considering this, Africa Centres for Disease Control and Prevention (Africa CDC) established a task force of 24 members to provide expertise and guidance in the development of AU HIE guidelines and standards. Members of the task force were subject matter experts working in Africa and internationally on the collection, analysis, and exchange of health information. Some of these experts had been involved in previous consultations on defining Africa CDC’s health information systems strategy. A chairperson, co-chairperson, and secretary were elected to engage the task force members in different technical working groups.
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