The aim of this handbook is to provide network members and other laboratories involved in the diagnosis of tuberculosis, with an agreed list of key diagnostic methods and their protocols in various areas of TB diagnosis, ranging from microbiological diagnosis of active TB to the diagnosis of latent ...TB infection. This handbook offers a single source of reference by compiling all methods, with a strong focus on standard (reference) and evidence-based methods. In so doing, it will also contribute to the improvement of disease surveillance data for Europe.
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This Tuberculosis guide has been developed jointly by Médecins Sans Frontières and Partners In Health. It aims at providing useful information to the clinicians and health staff for the comprehensive management of tuberculosis. Forms of susceptible and resistant tuberculosis, tuberculosis in child...ren, and HIV co-infection are all fully addressed.
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This document is an evidence-based policy for the implementation of sound tuberculosis (TB) infection control by all stake- holders. It recommends a combination of measures aimed at reducing the risk of TB transmission within populations. The emphasis is on early and rapid diagnosis, and proper mana...gement of TB patients.
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Undernutrition increases the risk of tuberculosis (TB) and in turn TB can lead to malnutrition. Undernutrition is therefore highly prevalent among people with TB. It has been demonstrated that undernutrition is a risk factor for progression from TB infection to active TB disease and that undernutrit...ion at the time of diagnosis of active TB is a predictor of increased risk of death and TB relapse. However, the evidence concerning the effect of nutritional supplementation on TB prevention and health outcomes among people with TB had not previously been systematically reviewed. This guideline provides guidance on the principles and recommendations for nutritional care and support of patients with TB as part of their regular TB care
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Each year, 33000 people die from an infection due to bacteria resistant to antibiotics. The burden of infections with bacteria resistant to antibiotics on the European population is comparable to that of influenza, tuberculosis and HIV/AIDS combined.
While many of the countries hit by the COVID-19 in the first few months of the year are now beginning to relax lockdown measures as infection and death rates fall, in the regions most affected by HIV, TB and malaria, such as Africa, South Asia and Latin America, the pandemic continues to accelerate.... In lower resource settings, lockdowns are less effective and hard to sustain, and clinical care facilities are extremely limited. In such environments, the response to COVID-19 must focus on containing the pandemic’s spread as far as possible through testing, contact tracing and isolation, protecting the health workforce through training and the provision of personal protective equipment (PPE) and minimizing the knock-on impact on other diseases through shoring up fragile health systems, and adapting existing disease programs.
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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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PRESENTACIÓN
Cada año se registran 220 000 nuevos casos de tuberculosis en la Región de las Américas y mueren más de 50 000 personas a consecuencia de esta enfermedad. Uno de los aspectos más importantes en relación a la tuberculosis, es que es una enfermedad 100% curable y prevenible, sin e...mbargo se ha convertido en la infección trasmisible más importante en los seres humanos.
La tuberculosis (TB) es una enfermedad infectocontagiosa que causa una enfermedad crónica, afectando principalmente a los pulmones. Esta enfermedad tiene un importante componente social, debido a que se asocia a la pobreza y al hacinamiento por inadecuadas condiciones de vivienda, transporte público o ambientes laborales, sobre todo en grandes ciudades.
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Following review of evidence and advice from the Technical Advisory Group (TAG) on Tuberculosis (TB) Diagnostics and Laboratory Strengthening, the World Health Organization (WHO) announces that current WHO recommendations for the use of interferon-gamma release assays (IGRA) are also valid for Beij...ing Wantai’s TB-IGRA and Qiagen QuantiFERON-TB Gold Plus products. This expands the range of tests available to detect TB infection. Full details are provided in this WHO policy statement.
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Estas directrices sustituyen a los anteriores documentos de política de la OMS sobre el manejo de la ILTB en las personas con la infección por el VIH, los contactos del hogar de personas con TB y otros grupos de riesgo. Las Directrices unificadas de la OMS sobre la tuberculosis: Tratamiento preven...tivo de la tuberculosis se elaboraron conforme a los requisitos del Comité de Examen de Directrices. El grupo de elaboración de las directrices (GDG, por su sigla en inglés) examinó la calidad de la evidencia más reciente disponible sobre la efectividad y los posibles perjuicios, así como la certeza de la evidencia, los valores y las preferencias, además de cuestiones de equidad, utilización de recursos, aceptabilidad y viabilidad de la aplicación al actualizar o formular nuevas recomendaciones y determinar su fuerza.
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7 April 2022. Aimed at national policymakers, public health and healthcare planners, staff working in reception centres, and healthcare staff caring for displaced persons, the information note concludes that universal testing of incoming refugees from Ukraine for tuberculosis (TB) infection is not r...ecommended. Specific groups, such as household contacts of bacteriologically confirmed pulmonary cases, or those who are immunocompromised should however be considered for TB infection testing.
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La técnica diagnóstica ampliamente usada a nivel mundial corresponde a la Prueba de Tuberculina o test de Mantoux, la que a través de la inyección de antígenos de Micobacterium tuberculosis permite medir la reacción del individuo y estimar su probabilidad de infección. El presente manual tie...ne como objetivo describir la técnica para la realización del examen, además de ofrecer lineamientos para su uso programático en Chile.
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Nat Commun 9, 5370 (2018). https://doi.org/10.1038/s41467-018-07804-8. Mycobacterium ulcerans is the causative agent of Buruli ulcer, a neglected tropical skin disease that is most commonly found in children from West and Central Africa. Despite the severity of the infection, therapeutic options are... limited to antibiotics with severe side effects. Here, we show that M. ulcerans is susceptible to the anti-tubercular drug Q203 and related compounds targeting the respiratory cytochrome bc1:aa3. While the cytochrome bc1:aa3 is the primary terminal oxidase in Mycobacterium tuberculosis, the presence of an alternate bd-type terminal oxidase limits the bactericidal and sterilizing potency of Q203 against this bacterium. M. ulcerans strains found in Buruli ulcer patients from Africa and Australia lost all alternate terminal electron acceptors and rely exclusively on the cytochrome bc1:aa3 to respire. As a result, Q203 is bactericidal at low dose against M. ulcerans replicating in vitro and in mice, making the drug a promising candidate for Buruli ulcer treatment.
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Buruli ulcer is a chronic, progressive skin disease caused by infection with Mycobacterium ulcerans. It is currently considered to be one of the neglected tropical diseases; less common than tuberculosis but more common than leprosy. The initial lesion is a painless subcutaneous nodule, usually less... than 5 cm diameter and adherent to skin. The nodule typically breaks down centrally after days to weeks forming an ulcer with undermined edges. Thus, the external appearance of the ulcer underestimates the true size of the affected area. The patient remains well and there is no pain unless secondary bacterial infection occurs. Other forms of M. ulcerans disease include a firm plaque lesions that behaves in the same way as the nodule or an oedematous lesion that is more aggressive and extends rapidly resulting in a very large ulcer.
Any age group can be affected by Buruli ulcer diseases, but the incidence peaks at 5 to 15 years. Ulcers are most frequently on the limbs but can be on the trunk or head, sometimes with catastrophic consequences such as loss of sight or loss of breast or genital tissue. Healing close to a joint can result in contracture, and sometimes there is so much tissue destruction on a limb that amputation is unavoidable. Occasionally osteomyelitis occurs in bone adjacent to a skin lesion but involvement of other organs is rare. Disseminated disease with HIV has been reported.
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Leishmaniasis is a major vector-borne disease caused by obligate intramacrophage protozoa of the genus Leishmania, and transmitted by the bite of phlebotomine female sand flies of the genera Phlebotomus and Lutzomyia, in the old and new worlds, respectively. Among 20 well-recognized Leishmania speci...es known to infect humans, 18 have zoonotic nature, which include agents of visceral, cutaneous, and mucocutaneous forms of the disease, in both the old and new worlds. Currently, leishmaniasis show a wider geographic distribution and increased global incidence. Environmental, demographic and human behaviors contribute to the changing landscape for zoonotic cutaneous and visceral leishmaniasis. The primary reservoir hosts of Leishmania are sylvatic mammals such as forest rodents, hyraxes and wild canids, and dogs are the most important species among domesticated animals in the epidemiology of this disease. These parasites have two basic life cycle stages: one extracellular stage within the invertebrate host (phlebotomine sand fly), and one intracellular stage within a vertebrate host. Co-infection with HIV intensifies the burden of visceral and cutaneous leishmaniasis by causing severe forms and more difficult to manage. The disease is endemic to Ethiopia, and the clinical signs are not pathognomic. The visceral form (Kala-azar) may be confused with other similar conditions such as malaria, tropical splenomegaly, schistosomiasis, milliary tuberculosis, and brucellosis. Similarly, cutaneous leishmaniasis should be differentiated from disease like tropical ulcers, impetigo and leprosy. There are several methods of laboratory diagnosis of leishmaniasis, including parasitological, immunological and molecular. Different forms of treatments are available including oral, parenteral, and topical medications such as pentavalent antimonials, liposomal amphotericin B, miltefosine and paromomycin. Methods of control are largely limited to destruction of animal reservoirs, treatment of infected humans, and management of sand fly populations. Development of an effective vaccine against leishmaniasis has been largely unsuccessful and hinders its prevention.
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El objetivo de esta nota conceptual y del marco que describe es la eliminación de un grupo de enfermedades transmisibles y los efectos negativos sobre la salud que generan que juntos crean una carga tangible en las personas afectadas, sus familias y comunidades, y en los sistemas de atención de sa...lud en toda la Región. Aunque no hay consenso sobre las mejores medidas que se deben usar para la salud de las personas y de acuerdo con la situación epidemiológica de un país, es habitual medir la carga de enfermedad mediante las tasas de enfermedad (incidencia, prevalencia, etc.), las tasas de mortalidad por enfermedad específica, las tasas de morbilidad y mortalidad comparativas, la distribución geográfica y los años de vida ajustados en función de la discapacidad (AVAD)…. Se analiza la situación epidemiológica actual, incluidos los datos sobre tasas de enfermedad o distribución geográfica para las enfermedades del cuadro 1. Hotez et al. (2008) fueron los primeros en examinar y comparar la carga de los AVAD en América Latina y el Caribe para las ETD, la infección por el VIH/sida, la malaria y la tuberculosis como era hace unos diez años atrás. Aunque la carga regional de tuberculosis, malaria y enfermedades infecciosas desatendidas (EID) es algo menor a la de hace diez años, se sigue perdiendo la posibilidad de trabajar (y de asistir a la escuela) debido a la enfermedad y muerte prematura o discapacidad, y la necesidad de acelerar los esfuerzos para eliminar las enfermedades es evidente en todas las comunidades en situación de vulnerabilidad.
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El objetivo de esta nota conceptual y del marco que describe es la eliminación de un grupo de enfermedades transmisibles y los efectos negativos sobre la salud que generan que juntos crean una carga tangible en las personas afectadas, sus familias y comunidades, y en los sistemas de atención de sa...lud en toda la Región. Aunque no hay consenso sobre las mejores medidas que se deben usar para la salud de las personas y de acuerdo con la situación epidemiológica de un país, es habitual medir la carga de enfermedad mediante las tasas de enfermedad (incidencia, prevalencia, etc.), las tasas de mortalidad por enfermedad específica, las tasas de morbilidad y mortalidad comparativas, la distribución geográfica y los años de vida ajustados en función de la discapacidad (AVAD)…. Se analiza la situación epidemiológica actual, incluidos los datos sobre tasas de enfermedad o distribución geográfica para las enfermedades del cuadro 1. Hotez et al. (2008) fueron los primeros en examinar y comparar la carga de los AVAD en América Latina y el Caribe para las ETD, la infección por el VIH/sida, la malaria y la tuberculosis como era hace unos diez años atrás. Aunque la carga regional de tuberculosis, malaria y enfermedades infecciosas desatendidas (EID) es algo menor a la de hace diez años, se sigue perdiendo la posibilidad de trabajar (y de asistir a la escuela) debido a la enfermedad y muerte prematura o discapacidad, y la necesidad de acelerar los esfuerzos para eliminar las enfermedades es evidente en todas las comunidades en situación de vulnerabilidad.
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The Roadmap towards ending TB among children and adolescents, third edition builds on the 2013 and 2018 versions. The 2023 version recognizes the progress made over the past five years and outlines priorities and key actions designed to accelerate progress towards the targets elaborated during the 2...023 United Nations General Assembly High-Level Meeting on the fight against TB. Implementation of these key actions at the global, regional, national and sub-national levels is expected to find and treat more children and adolescents with tuberculosis (TB) disease or TB infection, to prevent TB, to improve treatment outcomes and prevent TB-associated disability. The 2023 Roadmap retains the strong focus on TB in children, while also emphasizing the importance of addressing TB among adolescents, and for the first time, among pregnant and post-partum women.
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About one fourth of the world’s population is estimated to have been infected with the tuberculosis (TB) bacilli, and about 5–10% of those infected develop TB disease in their lifetime. The risk for TB disease after infection depends on several factors, the most important being the person’s im...munological status. TB preventive treatment (TPT) given to people at highest risk of progressing from TB infection to disease remains a critical element to achieve the global targets of the End TB Strategy, as reiterated by the second UN High Level Meeting on TB in 2023. Delivering TPT effectively and safely necessitates a programmatic approach to implement a comprehensive package of interventions along a cascade of care: identifying individuals at highest risk, screening for TB and ruling out TB disease, testing for TB infection, and choosing the preventive treatment option that is best suited to an individual, managing adverse events, supporting medication adherence and monitoring programmatic performance.
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About one fourth of the world’s population is estimated to have been infected with the tuberculosis (TB) bacilli, and about 5–10% of those infected develop TB disease in their lifetime. The risk for TB disease after infection depends on several factors, the most important being the person’s im...munological status. TB preventive treatment (TPT) given to people at highest risk of progressing from TB infection to disease remains a critical element to achieve the global targets of the End TB Strategy, as reiterated by the second UN High Level Meeting on TB in 2023. Delivering TPT effectively and safely necessitates a programmatic approach to implement a comprehensive package of interventions along a cascade of care: identifying individuals at highest risk, screening for TB and ruling out TB disease, testing for TB infection, and choosing the preventive treatment option that is best suited to an individual, managing adverse events, supporting medication adherence and monitoring programmatic performance
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