The WHO continuously reviews available data on SARS-CoV-2 variants of concern. For this version, the global epidemiological
situation of the COVID-19 pandemic as of 21 January 2022 – at a time when the Omicron VOC had been identified in 171
countries across all six WHO Regions and was rapidly re...placing Delta worldwide – was considered Omicron has a substantial growth advantage, higher secondary attack rates and a higher observed reproduction number than Delta.
There is now significant evidence that immune evasion contributes to the rapid spread of Omicron. Other factors may be a shorter
serial interval (by about 0.8 to 1.2 days compared to Delta) and potential increased intrinsic transmission fitness . There is
growing evidence that with Omicron, there is lower vaccine effectiveness (VE) against infection and symptomatic disease soon after vaccination compared to Delta. There is also evidence of accelerated waning of VE over time of the primary series against infection and symptomatic disease for the studied vaccines. Further studies are required to better understand the drivers of transmission and declining incidence in various settings. These factors include the intrinsic transmission fitness properties of the virus, degree of immune evasion, vaccination coverage and level of vaccine-derived and post-infection immunity, levels of social mixing and degree of application of public health and social measures (PHSM).
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22 April 2022, This document provides updated interim recommendations on the use of masks by health workers providing care to patients with suspected or confirmed COVID-19. This update is prompted by new evidence around mask use and COVID-19 transmission, as well as the emergence of variants of conc...ern including Omicron. Masks continue to be a critical tool to prevent the spread of COVID-19. These interim guidelines supersede the recommendations provided in the WHO recommendations on mask use by health workers, in light of the Omicron variant of concern published on 22 December 2022.
WHO continually evaluates the emerging evidence and will review these interim recommendations within two months and issue new guidance as needed.
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Recommendations for a Public Health approach and considerations for policy-makers and managers
These guidelines provide specific recommendations and expert suggestions — for national policy-makers and programme managers and their partners and stakeholders— on prioritizing, planning and providing HIV testing, counselling, treatment and care services for adolescents
The toolkit is a collection of assessment tools and checklists that describe the key considerations to be taken into account when transitioning to Option B/B+. The toolkit provides a roadmap to support the planning and implementation of Option B/B+, and to help countries scale up more effective inte...rventions and programs to achieve the goals of the Global Plan Towards the Elimination of New HIV Infections among Children by 2015 and Keeping their Mothers Alive.
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guidance for health managers, health workers, and activists
Histoplasmosis is a disease caused by the fungus Histoplasma capsulatum. This disease is highly endemic in some regions of North America, Central America, and South America and is also reported in certain countries of Asia and Africa. It often affects people with impaired immunity, including people ...living with HIV, among whom the most frequent clinical presentation is disseminated histoplasmosis. The symptoms of disseminated histoplasmosis are non-specific and may be indistinguishable from those of other infectious diseases, especially disseminated tuberculosis (TB), thus complicating diagnosis and treatment. Histoplasmosis is one of the most frequent opportunistic infections caused by fungal pathogens among people living with HIV in the Americas and may be responsible for 5–15% of AIDS-related deaths every year in this Region. These guidelines aim to provide recommendations for the diagnosis, treatment, and management of disseminated histoplasmosis in persons living with HIV
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Investigación original / Original research
Rev Panam Salud Publica 35(1), 2014
The COVID-19 pandemic has had an unprecedented impact on health care systems that, in many instances, worsened the already existing assistance gaps. When it comes to Latin America and Central America, this challenge adds to the consequences mass mobilizations have had in recent years, which have exc...eeded the national capacities to provide prompt assistance and social protection, particularly in the health care field. This pandemic has a direct impact on people on the move since the movement restriction policies and the lockdown and social distancing measures have reduced their ability to insert themselves into economic activities that were already precarious in many cases. Consequently, they have less access to food, housing, medicines and other essential consumer goods, and fewer possibilities of getting to their countries of destinati
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The use of explosive weapons, such as bombs, rockets, and mortar and
artillery shells, in cities, towns and villages and in other populated areas
has devastating humanitarian consequences. Explosive weapons act mainly
through the projection of blast and fragmentation wi...thin an area. Their use,
in populated areas, causes severe suffering to civilians, both in terms of
death and serious injury resulting directly from the explosion, and in terms
of damage to property and public infrastructure, which can indirectly affect
civilian well-being and survival, sometimes for many years after a conflict
has ended. Explosive weapons also leave behind explosive remnants that
pose a threat to populations until those remnants are removed. [...] The study finds that the regulation of explosive weapons under international
law and policy is fragmentary and incoherent.
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In response to the COVID-19 outbreak, this guidance provides information on infection and prevention control (IPC) for older people, their friends and families, carers, and healthcare providers. Anyone who manages, works, volunteers or provides care at any type of facilities where older people recei...ve care at (long-term care facilities, non-acute care facilities, and home care services), should practice strict IPC to prevent and control COVID-19 outbreaks. It has been observed in different countries that older people have higher case-fatality rate compared to other age groups. Therefore, it is especially important to implement and follow IPC measures at facilities, homes, and other venues that older people frequent.
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This six-day training is intended for case managers/community health volunteers/field supervisors who help households affected by HIV in India.
This report includes analysis from informal regional consultations in the African Region, the Caribbean and North America, Latin America, South-East Asia Region, European Region, Eastern Mediterranean Region, alongside three forums in the Western Pacific Region. It analyses the overarching similarit...ies, regional nuances and priorities raised across the six WHO regions for the meaningful engagement of individuals with lived experience.
It is the second publication in the WHO Intention to action series, which aims to enhance the limited evidence base on the impact of meaningful engagement and address the lack of standardized approaches on how to operationalise meaningful engagement. The Intention to action series aims to do this by providing a platform from which individuals with lived experience, and organizational and institutional champions, can share solutions, challenges and promising practices related to this cross-cutting agenda. The Intention to action series also aims to provide powerful narratives, inspiration and evidence towards the Fourth United Nations High Level Meeting on NCDs in 2025 and achieving the 2030 United Nations Sustainable Development Goals (SDGs).
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This report includes analysis from informal regional consultations in the African Region, the Caribbean and North America, Latin America, South-East Asia Region, European Region, Eastern Mediterranean Region, alongside three forums in the Western Pacific Region. It analyses the overarching similarit...ies, regional nuances and priorities raised across the six WHO regions for the meaningful engagement of individuals with lived experience.
It is the second publication in the WHO Intention to action series, which aims to enhance the limited evidence base on the impact of meaningful engagement and address the lack of standardized approaches on how to operationalise meaningful engagement. The Intention to action series aims to do this by providing a platform from which individuals with lived experience, and organizational and institutional champions, can share solutions, challenges and promising practices related to this cross-cutting agenda. The Intention to action series also aims to provide powerful narratives, inspiration and evidence towards the Fourth United Nations High Level Meeting on NCDs in 2025 and achieving the 2030 United Nations Sustainable Development Goals (SDGs).
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This background document (EUR/RC72/BG/7) was considered and adopted by the WHO Regional Committee for Europe at its 72nd session (Tel Aviv, Israel, 12–14 September 2022), together with the working document (EUR/RC72/7) and information document (EUR/RC72/INF./4). The Regiona...l Committee adopted resolution EUR/RC72/R3, in which it endorsed the framework.
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Jin et al. Military Medical Research (2020) 7:4 https://doi.org/10.1186/s40779-020-0233-6
Position Article und Guideline