This infographic from the Tropeninstitut illustrates the malaria transmission cycle. It begins when an Anopheles mosquito bites a human and injects its sporozoites into the bloodstream. The sporozoites then travel to the liver where they mature and release merozoites back into the bloodstream. The m...erozoites then infect red blood cells, resulting in the clinical symptoms of malaria. Some merozoites develop into gametocytes, which can be ingested by another mosquito when it bites the infected person again, thus continuing the transmission cycle.
The infographic serves as an educational tool, helping to explain the complex life cycle of the malaria parasite and the role of mosquitoes in spreading the disease.
Accessed on 26/08/2025.
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The CDC Yellow Book is the Centers for Disease Control and Prevention's comprehensive reference guide to health issues related to international travel. It provides evidence-based recommendations and practical guidance for healthcare professionals advising travellers, as well as for travellers themse...lves. Topics covered include country-specific vaccination requirements, the prevention and treatment of infectious diseases, malaria prophylaxis, food and water safety, the management of travel-related conditions, and guidance for special populations, such as children, pregnant travellers and individuals with chronic illnesses. Updated every two years, the Yellow Book synthesises global surveillance data, World Health Organization guidelines and CDC expertise to help prevent illness and injury during international travel. Serving as both an authoritative clinical tool and a public health resource, it ensures safe and healthy travel worldwide.
Accessed on 27/08/2025.
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Depending on the health profile of the traveller, the type of travel to be undertaken, and the place of transit and destination, travellers may face various health risks during travel. The International travel and health collection is an update of International travel and health (2012) and serves as... an entry point for other World Health Organization (WHO) publications that provide further information. Its primary target audience is travel health practitioners and travel health professionals, who provide health advice to travellers on appropriate precautions to be taken to minimize any travel-related health risks in unfamiliar environments, before, during and after travel. The guidance may also be of interest to health authorities who intend to support travel health professionals in their jurisdiction or develop
health advice for their population. It may also be of interest to travellers who wish to obtain such information for themselves as well as those working in the travel industry, such as agents and organizers, airlines and shipping companies.
Module 3 outlines the clinical features, geographical distribution and chemoprophylaxis against malaria, as well as personal protection measures against mosquitoes that travellers should take during their journey and at destinations, and treatment for those who are infected.
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Combination therapy is a cornerstone of modern malaria treatment, particularly in the context of widespread multidrug resistance. Using two or more antimalarial drugs with different mechanisms simultaneously enhances efficacy, shortens treatment duration, improves compliance and delays the developme...nt of resistance. Artemisinin-based combination therapies (ACTs), such as artemether–lumefantrine, artesunate–amodiaquine and artesunate–sulfadoxine/pyrimethamine, are highly effective in rapidly clearing parasites and reducing gametocyte carriage. They are also generally well tolerated. Non-artemisinin combinations, quinine-based regimens and novel combinations (e.g. piperaquine–dihydroartemisinin) offer alternative therapeutic options, although clinical experience with these remains limited. Although ACTs are the preferred first-line treatment, factors such as cost, local drug resistance patterns, safety during pregnancy and paediatric use must inform implementation and policy decisions.
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Access to medicines is essential for attainment of universal health coverage, which is central to achievement of the health-related Sustainable Development Goals. Controlled medicines include those such as opioids, benzodiazepines, barbiturates, amphetamines and others with identified or emergent cl...inical indications. WHO recognizes that these medicines are necessary for pre- and post-operative care, for sedation, for the management of both acute and chronic pain, for palliative care, as anticonvulsants (anti-epileptics), for the management of anxiety disorders and for the management of substance use disorders, including as opioid agonist therapy (OAT).
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On 27 September 2024, the Ministry of Health of Rwanda confirmed the country’s first outbreak of Marburg virus disease (MVD), with health-care workers in Kigali particularly affected. While sporadic outbreaks have occurred in various parts of Africa since the first recognized cases in 1967, this o...utbreak is the third largest outbreak of MVD ever recorded to date. Marburg virus disease is a severe disease clinically similar to Ebola disease. With no approved treatments or vaccines for MVD, early intervention for those showing symptoms is crucial for improving survival rates.
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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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All health workers require knowledge and skills to care for patients safely and protect themselves from undue harm. This course was developed due to the enormous emphasis placed on need for safe provision of oxygen to patients with COVID-19, but can be used for conditions beyond COVID-19. This cours...e teaches how to choose the right equipment for your facility, how to set up new respiratory equipment, how to clinically use respiratory equipment, how to maintain equipment, including troubleshooting, repairs and infection prevention and control, and how to decommission equipment.
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MEDICINA (Buenos Aires) 2020; Vol. 80 (Supl. VI): 100-10;
La tuberculosis es una enfermedad infecciosa crónica endémica en la República Argentina causada por Mycobacterium tuberculosis, cuya localización más frecuente es la pulmonar. Suele afectar grupos poblacionales carenciados y tiene gran... repercusión sobre la salud pública. COVID-19 es una infección viral aguda caus 101-ada por SARS-CoV-2 que tiene típico compromiso respiratorio y, en ocasiones, puede presentar similitudes clínicas y radiológicas con la tuberculosis pulmonar. Ambas entidades pueden tener desenlace fatal si no son diagnosticadas y tratadas a tiempo. Presentamos una serie de casos en los que se diagnosticó tuberculosis pulmonar y COVID-19 en forma simultánea.
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Medicina (B. Aires) vol.80 supl.6 Ciudad Autónoma de Buenos Aires dic. 2020
La tuberculosis es una enfermedad infecciosa crónica endémica en la República Argentina causada
por Mycobacterium tuberculosis, cuya localización más frecuente es la pulmonar. Suele afectar
grupos poblacionales car...enciados y tiene gran repercusión sobre la salud pública. COVID-19 es una infección
viral aguda caus 101-ada por SARS-CoV-2 que tiene típico compromiso respiratorio y, en ocasiones, puede pre-
sentar similitudes clínicas y radiológicas con la tuberculosis pulmonar. Ambas entidades pueden tener desenlace
fatal si no son diagnosticadas y tratadas a tiempo.
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Front. Immunol. 12:620657. doi: 10.3389/fimmu.2021.620657.
HIV-1 infection disproportionately affects women in sub-Saharan Africa, where areas of high HIV-1 prevalence and Schistosoma haematobium endemicity largely overlap. Female genital schistosomiasis (FGS), caused most frequently by S. haemato...bium egg deposition in the genital tract, has been associated with prevalent HIV-1 infection in cross-sectional studies. The presence of S. haematobium eggs in genital tissue is also associated with vascularization and the accumulation of CD4+ lymphocytes and macrophages, making the granuloma-associated environment a potential contributor to HIV-1 vulnerability. In addition to modulation of the local cervicovaginal environment, FGS has also been associated with a higher frequency of systemic CD4 T-cells expressing the chemokine receptor CCR5. Tissue-entrapped eggs are also associated with clinically visible FGS-associated manifestations in the cervicovaginal mucosa. FGS lesions may breach the intact cervicovaginal immune barrier and are hypothesized to provide an entry point for HIV-1 infection. However, the underlying mechanism for potential HIV-1 vulnerability in FGS has not been fully characterized and requires further investigation.
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A varíola dos macacos é uma doença infeciosa emergente causada por um vírus transmitido aos humanos por animais infetados, na sua maioria roedores. Pode ser propagado a outras pessoas, mas a transmissão de pessoa para pessoa, isoladamente, não pode facilmente sustentar um surto. A apresentaç...o clínica é semelhante à observada no passado com a varíola, mas menos grave. A varíola foi erradicada mundialmente em 1980; no entanto, a varíola dos macacos ainda ocorre esporadicamente em partes da África Central e Ocidental, perto das florestas tropicais húmidas. Normalmente, a mortalidade nos surtos da varíola dos macacos tem sido de 1 a 10%, mas com os cuidados adequados, a maioria dos doentes recupera. Este curso fornece uma introdução geral à varíola dos macacos e destina-se aos profissionais de saúde responsáveis pela prevenção e controlo da varíola dos macacos.
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El presente protocolo es una actualización del emitido el 24 de abril 2020 y contiene las
siguientes modificaciones:
• Definición de caso: Las definiciones de caso sospechoso y confirmado son dinámicas y secundarias a la situación epidemiológica vigente. En este contexto el Ministerio de
...
Salud de Nación ha modificado el criterio de caso sospechoso y de caso confirmado en pediatría. El Ministerio de Salud de Provincia de Buenos Aires acepta y adhiere a estos cambios.
• Manifestaciones clínicas: Se agregan manifestaciones clínicas en pediatría en base a la evidencia disponible y según la actualización realizada por el Ministerio de Salud de
Nación.
• Criterio de Alta: Los criterios de alta para el manejo de casos son dinámicos y se
adecúan conforme con las actualizaciones de la evidencia disponible y las recomendaciones de la Organización Mundial de la Salud. En este marco, el Ministerio de Salud de Nación ha modificado el criterio de alta del aislamiento para un caso
confirmado de COVID-19 el 24 de junio. El Ministerio de Salud de Provincia de Buenos
Aires acepta y se adhiere a este cambio.
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El 31 de diciembrede 2019 las Autoridades de la República Popular China, comunicaron a la OMS varios casos de neumonía de etiología desconocida en Wuhan, una ciudad situada en la provincia china de Hubei. Una semana más tarde confirmaron que se trataba de un nuevo co...ronavirus que ha sido denominado SARS-CoV-2. Al igual que otros de la familia de los coronavirus, este virus causa diversas manifestaciones clínicas englobadas bajoel término COVID-19, que incluyen cuadros respiratorios que varían desde el resfriado común hastacuadros de neumonía grave con síndrome de distrés respiratorio, shock séptico y fallo multi-orgánico. La mayoría de los casos de COVID-19 notificados hasta el momento debutan con cuadros leves.Un punto de detección importante de casos de COVID-19es la urgencia hospitalaria. El triaje tiene como objetivo identificar y priorizar al paciente más grave. Al tratarse deuna enfermedad transmisiblese debenextremar las medidas deprecaución.
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2ª edição atualizada.
O Manual de Recomendações apresenta as diretrizes nacionais para o controle da doença, que incluem procedimentos clínicos padronizados, procedimentos laboratoriais, sistema de vigilância, ações de biossegurança e organização de serviços. Apesar de conter as reco...mendações clínicas no que diz respeito à padronização de ações de busca de casos e tratamento, o manual está destinado às ações voltadas para a saúde pública e não pretende ser um guia clínico sobre a doença. Dessa forma, não substitui livros, textos e publicações acadêmicas que identifiquem boas práticas clínicas sobre a abordagem do sintomático respiratório e do paciente com tuberculose nos seus variados aspectos e especificidades.
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O Ministério da Saúde (MS), por meio da Coordenação-Geral do Programa Nacional de Imunizações (CGPNI) e da Coordenação-Geral de Informações e Análises Epidemiológicas (CGIAE) da Secretaria de Vigilância em Saúde (SVS) publica o Protocolo de Vigilância do Óbito no Contexto da síndrom...e inflamatória multissistêmica pediátrica (SIM-P) associada à covid-19.
A SIM-P é uma nova apresentação clínica potencialmente grave em crianças e adolescentes associada à infecção pelo vírus SARS-CoV-2, que já foi descrita em diversos países, inclusive no Brasil.
Até a semana epidemiológica 27 de 2021 (SE 27) que vai até 10 de julho de 2021, foram notificados 1.105 casos confirmados de SIM-P no território nacional e registrados 69 óbitos (letalidade de 6,2%).
Os dados registrados no Brasil demonstram uma letalidade maior por SIM-P quando comparados a países desenvolvidos. Neste contexto, o objetivo deste Manual é fornecer às equipes de vigilância epidemiológica munici pais, estaduais e distrital subsídios para implantação da vigilância do óbito relacionado à doença, além de investigar quais fatores estão relacionados ao óbito em decorrência da SIM-P no país.
Este documento foi desenvolvido com a colaboração da Coordenação de Saúde da Criança e Aleitamento Materno (Cocam) do Secretaria de Atenção Primária a Saúde (SAPS)
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Mientras los países se esfuerzan por avanzar hacia los Objetivos de Desarrollo Sostenible (ODS) y lograr la cobertura sanitaria universal, las desigualdades sanitarias provocadas por la discriminación racial y los factores interrelacionados siguen estando omnipresentes. Las desigualdades que sufre...n los pueblos indígenas, los afrodescendientes, los romaníes y otras minorías étnicas son preocupantes a nivel mundial; son injustas, prevenibles y remediables
Los propios sistemas de salud son determinantes importantes de la salud y la equidad sanitaria. Pueden perpetuar las desigualdades sanitarias al reflejar el racismo estructural y las prácticas discriminatorias de la sociedad en general. En este sentido, el racismo sistémico (por ejemplo, relacionado con la ubicación de los servicios o los requisitos para acceder a ellos), los prejuicios implícitos, la práctica clínica mal informada o la discriminación por parte de los profesionales de la salud contribuyen a las desigualdades sanitarias. Ahora bien, los sistemas de salud también pueden convertirse en una de las principales fuerzas para combatir las desigualdades a las que se enfrentan las poblaciones que sufren discriminación racial.
La atención primaria de salud (APS) representa la estrategia esencial que permite reorientar los sistemas de salud y las sociedades para que sean más saludables, equitativos, eficaces y sostenibles. En 2018, al cumplirse el 40.º aniversario de la Declaración de Alma-Ata, la Organización Mundial de la Salud (OMS) y el Fondo de las Naciones Unidas para la Infancia (UNICEF) renovaron el énfasis en la atención primaria de salud con su estrategia sobre la atención primaria de salud en el siglo XXI.
La OMS ha señalado 14 mecanismos estratégicos y operacionales con los que los responsables políticos pueden reforzar la atención primaria de salud. Cada mecanismo dispone de múltiples puntos de partida posibles para emprender acciones específicas dirigidas a combatir la discriminación racial, fomentar la atención de salud intercultural y reducir las desigualdades sanitarias que sufren los pueblos indígenas, los afrodescendientes, los romaníes y otras minorías étnicas
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El objetivo de este conjunto de herramientas técnicas básicas es delinear una trayectoria para lograr mejoras acumulativas y sostenibles adaptadas a las necesidades específicas de cada país a partir de tres estrategias y objetivos clave: la promoción de la salud para una detección precoz; el d...iagnóstico oportuno; y la gestión integral del cáncer de mama. En este documento se ofrece un marco común que vincula a los responsables de formular políticas, las partes interesadas, la comunidad de atención clínica, los gestores de programas y la sociedad civil con enfoques sistemáticos basados en la evidencia que pueden facilitar el fortalecimiento de los sistemas de salud y reducir las inequidades en la salud de las mujeres a lo largo de su ciclo vital.
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La Profilaxis Post-Exposición para el VIH (PEP) constituye una herramienta de prevención que consiste en el uso de medicamentos antiretrovirales para reducir el riesgo de infección luego de situaciones de potencial exposición del virus. Su incorporación está recomendada por la Organización Mu...ndial de la Salud en el marco de una estrategia de Prevención Combinada1,2. Cuando se inicia dentro de las 72 horas del episodio de potencial exposición al VIH, la PEP reduce en forma significativa el riesgo de transmisión, por lo que su uso se indica en exposiciones ocupacionales y no ocupacionales esporádicas. En la actualidad, una combinación de 3 drogas antirretrovirales durante 28 días es el esquema estándar empleado como PEP2.
A través de la Dirección de Sida, ETS, Hepatitis y TBC, se distribuye la medicación
necesaria para que la PEP esté disponible en efectores del sistema público de salud cuando está clínicamente indicada.
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