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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Recency assays use one or more biomarkers to identify whether HIV infection in a person is recent (usually within a year or less) or longstanding. Recency assays have been used to estimate incidence in representative cross-sectional surveys and in epidemiological studies to better understand the pat...terns and distributions of new and longstanding HIV infections.
This technical guidance outlines best practices regarding the appropriate use of HIV recency assays for surveillance purposes and updates 2011 technical guidance from the World Health Organization (WHO) and the Joint United Nations Programme on HIV/AIDS (UNAIDS) on the use of HIV recency assays.
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Available in Arabic, Chinese, English, French, Russian and Spanish. You can download a summary of the main report and background documents!
The report demonstrates that the current system—at both national and international levels— was not adequate to protect people from COVID-19. The time it t...ook from the reporting of a cluster of cases of pneumonia of unknown origin in mid-late December 2019 to a Public Health Emergency of International Concern being declared was too long. February 2020 was also a lost month when many more countries could have taken steps to contain the spread of SARS-CoV-2 and forestall the global health, social, and economic catastrophe that continues its grip. The Panel finds that the system as it stands now is clearly unfit to prevent another novel and highly infectious pathogen, which could emerge at any time, from developing into a pandemic.
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Food Security in Indonesia
WHO recommends that pre-exposure prophylaxis (PrEP) be offered as an additional prevention choice for HIV-negative individuals at substantial risk of HIV infection as part of combination prevention approaches.
HIV drug resistance has been rarely reported among PrEP users who tested HIV positive i...n randomized controlled trials or open-label studies. However, PrEP-selected HIV drug resistance could potentially negatively impact the effectiveness of treatment options among PrEP users who acquire HIV, since there is a potential for overlapping resistance profiles between antiretroviral drugs used for both PrEP and first-line antiretroviral therapy.
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Q3: What approaches are available to enable non-specialized health care providers to identify children with intellectual disabilities, including intellectual disabilities due to specific causes?
Treat 3 Million by 2005
WHO/HIV/2005.02
African Region
Following review of the latest evidence, WHO recommends that TB-LAMP can be used as a replacement for microscopy for the diagnosis of pulmonary TB in adults with signs and symptoms of TB. It can also be considered as a follow-on test to microscopy in adults with signs and symptoms of pulmonary TB, e...specially when further testing of sputum smear-negative specimens is necessary.
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The technical note from the Global Task Force on Cholera Control (GTFCC) examines the risks and benefits of vaccinating pregnant women with WHO-prequalified oral cholera vaccines (OCVs) during mass vaccination campaigns. It highlights that three WHO-approved vaccines (Dukoral®, Shanchol™, and Euv...ichol®) offer sustained protection and a strong safety profile.
While these vaccines are not explicitly contraindicated for pregnant women, there is limited clinical data on their use during pregnancy. However, studies indicate that pregnant women with cholera face higher risks of fetal loss, stillbirth, and complications, especially if they experience severe dehydration. Some evidence suggests that vaccination can reduce cholera incidence in pregnant women and indirectly protect infants.
Although no controlled trials have focused on pregnant women, retrospective studies in Guinea and Zanzibar showed no significant increase in adverse pregnancy outcomes after OCV administration. The GTFCC concludes that the benefits of vaccination outweigh the risks, particularly in high-risk areas, and recommends including pregnant women in cholera vaccination campaigns while continuing to monitor safety data.
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- The goal of diagnostic testing for Ebola and Marburg virus diseases is to identify cases to provide timely and appropriate care and to stop disease transmission.
- All individuals meeting the case definition for Ebola or Marburg virus diseases should be tested.
- The recommended sample type ...for testing for orthoebolaviruses and orthomarburgviruses is whole blood or plasma for living patients, and oral swab for deceased individuals.
- Laboratory confirmation of Orthoebolavirus and Orthomarburgvirus infections and further species identification should be done using nucleic acid amplification testing (NAAT).
- If a suspected case tests negative (living patient) and the blood was drawn less than 72 hours after symptom onset, a second test should be performed with blood drawn more than 72 hours after symptom onset.
- All manipulations in laboratory settings of samples originating from suspected, probable or confirmed cases of Ebola and Marburg virus diseases should be conducted with appropriate biosafety measures according to a risk-based approach.
- Whole or partial genome sequencing can be used to characterize viruses and complement epidemiologic investigations.
- Member States are strongly encouraged to share genetic sequence data (GSD) in publicly accessible databases.
- Member States are required to immediately notify the World Health Organization (WHO) under the International Health Regulations (IHR) 2005 of positive laboratory results.
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Рекомендации ВОЗ по оказанию дородовой помощи для формирования положительного опыта беременности
Consolidated guidelines on the use of antiretroviral drugs for treating and preventing HIV infection
Accessed: 26.02.2020
External quality assessment (EQA) is an important component of quality systems for blood transfusion services. Establishing external quality assessment programmes for screening of donated blood for transfusion-transmissible infections (TTI): implementation guide aims to support WHO member States in ...establishing and operating EQA programmes for screening donated blood for TTI. The guides has been designed for use by national health authorities and EQA organizing institutions in the development of EQA programme. It will also give participating laboratories an insight into the organization of EQA programmes for TTI screening and an understanding of the benefits of participation.
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Sound periodic programme reviews provide opportunities for countries to objectively assess progress and take corrective action to sustain or get back on track towards achieving their medium and long-term programme goals. It reflects people’s diverse needs, enables efficient use of health system re...sources and improves the predictability, sustainability and transparency of the programmes.
This publication provides guidance to countries on how to perform programme reviews for HIV, viral hepatitis and sexually transmitted infections in this dynamic health sector context. The guidance encourages integrated reviews across health programmes for more efficient use of health system resources. The welfare of populations to be served must be at the centre of health programme reviews, with the overarching resolve to protect and promote health as a human right.
This guidance is intended for use by all national partners, including health ministries, related ministries, civil society, affected communities and other stakeholders, for participatory and evidence-informed programme reviews.
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Guidelines
HIV testing services
July 2015
La pandémie actuelle de COVID-19 entraîne des difficultés exceptionnelles et sans précédent pour les autorités compétentesa responsables des systèmes nationaux decontrôle de la sécurité sanitaire des alimentsb, qui sont tenues de continuer à assurer des fonct...ions et des activités de routine en se conformant aux règlements nationaux et aux recommandations internationales. Dans de nombreux pays, le personnel employé par les autorités compétentes travaille généralement à domicile car le télétravail est devenu la norme et toutes les réunions en présentiel sont annulées ou sont réorganisées sous forme de téléconférence. Il est difficile de maintenir, sans interruption, les activités de routine telles que l’inspection des entreprises du secteur alimentaire, la certification des exportations, le contrôle des denrées alimentaires importées, le suivi et la surveillance de la sécurité de la chaîne d’approvisionnement alimentaire, l’échantillonnage et l’analyse des aliments, la gestion des incidents alimentaires, les conseils sur la sécurité sanitaire des aliments et la réglementation relative aux denrées alimentaires à l’intention de l’industrie et la communication au grand public sur les questions relatives à la sécurité sanitaire des aliments.
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