Leptospirosis is an infectious disease caused by pathogenic organisms belonging to the genus Leptospira, that are transmitted directly or indirectly from animals to humans. Leptospirosis is a major direct zoonosis. Humanto-human transmission occurs only very rarely.
Les présentes lignes directrices ont pour objet de préparer les pays d’endémie à arrêter l’AMM à l’issue du traitement, à passer à la surveillance post-thérapeutique ainsi qu’à confirmer l’interruption de la transmission à l’issue de la phase 2 et à débuter la surveillance p...ost-élimination.
Le but est de fournir un outil actualisé pour atteindre et vérifier l’élimination de la
transmission d’Ovolvulus à l’issue des programmes d’élimination de l’onchocercose qui utilisent principalement l’AMM.
Les objectifs sont de :
• formuler des recommandations basées sur des preuves à l’intention des prestataires de soins et des décideurs en matière de politique pour démontrer et confirmer l’interruption de la transmission d’O. volvulus avant, pendant et après la surveillance post-thérapeutique ;
• informer les utilisateurs finaux des procédures nécessaires pour vérifier l’élimination de l’onchocercose humaine.
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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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The incubation period (the time the virus spreads from the peripheral nerves near the site of the bite via the spinal cord to the brain – see transmission and pathogenesis) ranges in general between 2 and 3 month (2 weeks to 6 years are reported) depending on the site of infliction, the amount of ...virus and the virus strain. Due to its neurotropism all known lyssaviruses cause severe neurological symptoms as a result of an acute encephalitis. Therefore, clinical signs in humans and animals are very similar.
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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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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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We developed an integrated vector surveillance (IVS) proposal for cutaneous leishmaniasis (CL) and visceral leishmaniasis (VL) in the Americas, based on eco-epidemiological studies conducted by researchers of the Leishmaniasis Research Network of Argentina. For CL, the transmission was explained in ...the framework of the edge effect, the increase of vectors and risk of exposure at ecotones and environmental interfaces, and typified as ephemeral, transient, or permanent edges, supporting a cost-effective IVS strategy for early warning of CL outbreaks through an environmental modification alert network, which includes multiple sources of information and actors. In relation to VL, the earliest colonization sites and spatial distribution were explained by modeling and forecasting the most likely hotspots, persistent in time and space, and modulated by environmental variables. Therefore, for VL, a scalar strategy of critical site selection is proposed from a “city” scale based on secondary sources such as remote sensing for the definition of possible areas to monitor and intervene, a scale of restriction from possible to most likely areas through local knowledge, and a “focal site” scale of trap placement through field observation; in this way, IVS activities are carried out at a few sites of the urban landscape and allow a sustainable program.
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Infection prevention and control (IPC) in a CTC/ CTU IPC are all practical measures taken in the healthcare facility to prevent harm caused by infections to patients, health workers and communities.
The main goal of IPC in the cholera response is to
• To reduce transmission of health care-as...sociated infections of cholera and any other infectious disease
• To enhance the safety of staff, patients and visitors
• To enhance the ability of the organization/health care facility to respond to an outbreak
• To reduce the risk of the hospital (health care facility) itself amplifying the outbreak
Water, Sanitation and Hygiene (WASH)
WASH are all measures taken to guarantee environmental hygiene, safe water of all used within the health facility. It encompasses water, sanitation, waste management, cleaning within the health facility which in this case is CTU/C. A complete WASH package in the CTU/CTC reduces the risk of spread of Vibrio cholerae inside and outside the CTC/CTU.
The probability of spreading or acquiring cholera through a CTC/CTU can be highly reduced when proper IPC and WASH measures are respected, followed and monitored. These measures are, in principle, valid in CTC/CTUs and ORPs, although they need to be adapted to the specific characteristics of the facility concerned.
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This publication describes the history of malaria in Uzbekistan. It evaluates the policies and strategies applied after the re-establishment of local transmission to contain malaria outbreaks in the 1990s and early 2000s, and highlights the interventions subsequently used to eliminate malaria in the... country. Uzbekistan was officially certified by WHO as a malaria-free country in 2018. Lessons for countries embarking upon elimination are distilled. The publication is intended for health managers and personnel, researchers, teachers, students and post-graduates at medical schools.
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Mpox continues to affect people around the world. A new framework released today by WHO will guide health authorities, communities and other stakeholders in preventing and controlling mpox outbreaks, eliminating human-to-human transmission of the disease, and reducing spillover of the virus from ani...mals to humans.
Mpox is a viral illness caused by the monkeypox virus (MPXV). It can cause a painful rash, enlarged lymph nodes and fever. Most people fully recover, but some get very sick. The virus transmits from person to person through close, including sexual, contact. It also has animal reservoirs in east, central and west Africa, where spillovers from animals to humans can occasionally occur, sparking further outbreaks.
There are two different clades of the virus: clade I and clade II. Clade I outbreaks are deadlier than clade II outbreaks.
A major emergence of mpox linked to clade II began in 2017, and since 2022, has spread to all regions of the world. Between July 2022 and May 2023, the outbreak was declared a Public Health Emergency of International Concern. While that outbreak has largely subsided, cases and deaths continue to be reported today, illustrating that low-level transmission continues around the world.
Currently, there is also a major outbreak of clade I virus in the Democratic Republic of the Congo (DRC), where cases have been on the rise for decades. Since the beginning of the year, over 6500 cases and 345 deaths have been reported in the DRC. Almost half of these are among children under the age of 15 years.
The Strategic framework for enhancing prevention and control of mpox (2024–2027) provides a roadmap for health authorities, communities, and stakeholders worldwide to control mpox outbreaks in every context, advance mpox research and access to countermeasures, and to minimize zoonotic transmission.
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Given the circulation of the variant of clade I of mpox virus (MPXV) in the African Region, which is associated in the African Region with sustained transmission and the occurrence of cases in a wider range of age groups, including children, the Pan American Health Organization/World Health Organiza...tion (PAHO/WHO) encourages Member States to remain vigilant to the possibility of introduction of this variant in the Americas, and to continue their surveillance efforts, including genomic sequencing of detected cases, with special emphasis on high-risk groups.
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This course introduces Marburg Virus Disease and outlines the signs, symptoms, diagnosis, transmission routes and epidemiology of the disease. It also discusses prevention and control strategies.
The video titled "¿QUÉ ES LA TUBERCULOSIS? - ENFERMEDAD y SÍNTOMAS" (What is Tuberculosis? - Disease and Symptoms) provides an overview of tuberculosis (TB), detailing its causes, transmission methods, symptoms, and treatment options. It emphasizes the importance of early detection and treatment ...to prevent the spread of TB and highlights the global impact of the disease. The video also discusses preventive measures and the significance of public awareness in combating tuberculosis.
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Vaccines contribute to the battle against antimicrobial resistance (AMR) by preventing infections and thereby reducing antimicrobial use and the incidence of disease from resistant pathogens. By preventing infection transmission, vaccines extend population protection by also reducing the risk of inf...ection among the unvaccinated (herd immunity). A first comprehensive study found that
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Este documento propone: Contenidos técnicos sobre el ZIKV, sus manifestaciones, complicaciones, formas de transmisión y medidas de prevención a utilizar para el abordaje de “preguntas más frecuentes” y de mensajes en piezas y materiales de información y comunicación, charlas comunitarias, ...vocerías entre otros. Recomendaciones para la elaboración de planes de comunicación y acciones de comunicación de riesgos ante el ZIKV
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Prevención y control de infecciones y nuevo coronavirus (COVID-19): precauciones estándares y uso de equipos de protección personal
Agenda
Visión general de la historia natural del COVID-19
Precauciones estándares
Precauciones adicionales según mecanismos de transmisión
Evaluación de ri...esgo y EPP
Requisitos para uso de EPP
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Los objetivos del presente documento serán:Ofrecer una atención domiciliaria segura y de calidad.Garantizarunos niveles adecuados de protección de los familiares,convivientes,trabajadores sanitarios y de la poblacióngeneralcon el fin de prevenir la transmisiónde la enfermedad.
Las mejores prácticas de agua, saneamiento e higiene, en particular el lavado de manos con jabón y agua limpia, deben aplicarse y mantenerse estrictamente, ya que constituyen una barrera adicional importante para la transmisión de COVID-19 y para la transmisión de enfermedades infecciosas en gen...eral (OMS, 2002).
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Prevenir la contaminación de superficies y mantener condiciones adecuadas de limpieza y desinfección en los espacios públicos, es fundamental para mitigar la transmisión del virus y proteger la salud de los trabajadores y del público en general. Las superficies con alta frecuencia de contacto (...manijas de puertas, barandillas, mesas de comedor, etc.) requieren de especial atención para evitar contaminación a partir de las mismas
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Según las estimaciones, en las Américas hay entre 6 y 8 millones de personas con infección por T. cruzi, con aproximadamente 30 000 casos nuevos por año por transmisión vectorial, y 8000 casos nuevos anuales por transmisión congénita. Es decir, cerca de 65 millones de personas viven en la Reg...ión con el riesgo de contraer la infección. Además, durante cualquiera de las fases de esta parasitosis, las personas con la infección pueden sufrir algún grado de inmunosupresión, bien sea por una infección, una neoplasia o por un tratamiento farmacológico. En este decálogo se exponen los conceptos más importantes para tener en cuenta frente a la coexistencia de inmunosupresión y la infección por el T. cruzi.
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