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).
more
Disease epidemiology has a deeper relationship with the dynamic nature of culture. Health behaviors in general are largely shaped by the cultural norms and customs in a society. A mere identification of a behavior could be only a layer on the outer sphere of a particular disease epidemiology and the... interventional efforts to counteract such behaviors through for example public health measures could be futile and volatile, unless the deeper cultural factors are addressed.
more
Addressing comorbidities and risk factors for TB is a crucial component of Pillar one of the End TB Strategy, which focuses on integrated patient-centred care and prevention, including action on TB and comorbidities. The Framework for collaborative action on TB and comorbidities aims to support coun...tries in the evidence-informed introduction and scale-up of holistic people-centred services for TB, comorbidities and health-related risk factors, with the goal of comprehensively addressing TB and other co-existing health conditions. It should be used in conjunction with relevant WHO guidelines. The Framework is intended for use by people working in ministries of health, other relevant line-ministries, policymakers, international technical and funding organizations, researchers, nongovernmental and civil society organizations, as well as primary care workers, specialist health practitioners, and community health workers who support the response to TB and comorbidities in both the public and private sectors.
more
TUATION UPDATE
In the early morning of 6 February 2023, a magnitude 7.8 earthquake occurred in southern Türkiye near the
northern border of Syria. The earthquake was followed 11 minutes later by a magnitude 6.7 aftershock. Many
aftershocks are still being felt across the region. Whilst the imp...act is still being assessed, initial reports evidence
significant damage in the areas of southern Türkiye and northern Syria.
In response, the Syria Ministry of Health (MoH) activated its emergency operations centre (EOC) on 6 Feb 2023
under the chairmanship of the Deputy Minister. In all affected governorates, public and private health facilities
and medical convoys have been repurposed to support the response and are being managed by the National
Ministry of Health (MoH) and Directorate of Health (DoH) at governorate level. Support has been directed to
affected areas, with medical convoys including 28 ambulances and 7 mobile clinics, deployed from the health
directorates of Damascus, Rural Damascus, Quneitra, Homs, Tartous, Aleppo and Latakia. At the same time, 4
more
Antimicrobial resistance (AMR) is described as a situation when bacteria, viruses, fungi and parasites
change over time and no longer respond to medicines, making infections harder or impossible to treat,
and increasing the risk of disease spread, severe illness and death.1 AMR in recent years has... become
a global priority in public health due to its widespread consequences and increasing occurrence from
time to time. AMR has a formidable impact where the existing antibiotics and other antimicrobial
medicines become ineffective, and infections become increasingly difficult or impossible to treat.
more
This technical report contains the results from the FEEDcities Project – Eastern Europe and Central Asia, a cross-sectional survey of the local urban food environment conducted in Chișinău, Republic of Moldova between June and August 2016. It characterizes the vending sites, the food offered and... the nutritional composition of both industrial and homemade street foods. It also describes the nutritional composition of foods sold in supermarkets and fast-food outlets.
The study was conducted within a bilateral partnership between the World Health Organization and the Institute of Public Health of the University of Porto, in collaboration with the Faculty of Medicine, the Faculty of Nutrition and Food Sciences and the Faculty of Pharmacy of the University of Porto (WHO registration 2015/591370 and 2017/698514). The study was funded through a voluntary contribution of the Ministry of Health of the Russian Federation.
more
Weekly epidemiological recordRelevé épidémiologique hebdomadaire 3 MAY 2024, 99th YEAR / 3 MAI 2024, 99e ANNÉE
No 18, 2024, 99, 203–224
The WHO position papers are concerned primarily with the use of vaccines in large-scale vaccination programmes.
The position papers are intended for use by... national public health officials and managers of immunization programmes.
This paper focuses on the second licensed dengue vaccine, TAK-003 (Qdenga, Takeda), along with WHO’s position for its use, and provides an update on the first licensed dengue vaccine, CYD-TDV.
more
A survey was conducted in countries in all six WHO regions and focused on the building blocks that are considered prerequisites to combat antimicrobial resistance: a comprehensive national plan, laboratory capacity to undertake surveillance for resistant microorganisms, access to safe, effective ant...imicrobial medicines, control of the misuse of these medicines, awareness and understanding among the general public and effective infection prevention and control programmes.
more
Noma (cancrum oris) is a severe gangrenous disease of the mouth and face. It mostly affects children between the ages of 2 and 6 years living in extreme poverty. In addition to the known factors such as malnutrition, lack of vaccination in children and poor oral hygiene, several social and environme...ntal factors such as maternal malnutrition and close spacing of pregnancies that result in offspring with increasingly weakened immune systems are potentially related to the onset of the disease.
The aim of this guide is to assist the ministries of health (MoHs) to identify a general goal to be attained by the end of five years, with a view to sustainably reducing the incidence of noma as a public health problem through programmes that are fully integrated with national health planning, strengthening of primary health care (PHC) and attainment of UHC.
more
This guide is intended for people involved in the management and operation of small- to mediumsized organized water supply systems. The content has been developed with particular consideration for operational-level personnel with responsibility for chlorination (for example, water treatment plant op...erators and technicians). The material presented within this guide may also be relevant for engineers and representatives from public health, local government, non-governmental organizations, as well as any other individuals supporting water safety planning activities for the supply of safe drinking-water.
Part 1. Chlorination principles: Describes key chlorination concepts, providing a knowledge foundation for the implementation of effective chlorination practices.
Part 2. Chlorination practices: Describes the practical application of the concepts presented in Part 1, including calculations and procedures for safe and effective chlorination of drinking-water supplies.
more
The objective of the EMTCT Plus initiative is to achieve and sustain the elimination
of mother-to-child transmission of HIV, syphilis, Chagas, and perinatal hepatitis
B (HBV) as a public health threat. It embraces the principles and lines of action
of the Strategy for Universal Access to Health a...nd Universal Health Coverage
[2], building upon the lessons learned from the PAHO 2010 Strategy and Plan of
Action for the EMTCT of HIV and Congenital Syphilis.
more
This is a resource pack for a Knowledge, Attitudes and Practices (KAP) surveys about Zika virus and its suspected complications such as microcephaly and Guillain-Barré syndrome.
This resource and associated advice was requested by governments and response partners as a way to rapidly obtain valuab...le and insightful information in order to tailor interventions to better address people's needs at community level, thereby contributing to the overall public health response to Zika virus and its potential complications. It can be used in communities with Zika virus transmission or those at risk.
more
This report summarizes the latest scientific knowledge on the links between exposure to air pollution and adverse health effects in children. It is intended to inform and motivate individual and collective action by health care professionals to prevent damage to children’s health from exposure to ...air pollution.
Air pollution is a major environmental health threat. Exposure to fine particles in both the ambient environment and in the household causes about seven million premature deaths each year. Ambient air pollution alone imposes enormous costs on the global economy, amounting to more than US$ 5 trillion in total welfare losses in 2013.
This public health crisis is receiving more attention, but one critical aspect is often overlooked: how air pollution affects children in uniquely damaging ways. Recent data released by the World Health Organization (WHO) show that air pollution has a vast and terrible impact on child health and survival. Globally, 93% of all children live in environments with air pollution levels above the WHO guidelines (see the full report, Air pollution and child health: prescribing clean air. More than one in every four deaths of children under 5 years of age is directly or indirectly related to environmental risks. Both ambient air pollution and household air pollution contribute to respiratory tract infections that resulted in 543 000 deaths in children under the age of 5 years in 2016.
more
Working document from an informal consultation of experts. A Protocol for risk assessment at the field level. The purpose of document is to provide guidance on the methodology to be used for assessing, at field level, the yellow fever virus circulation in areas at risk, and is primarily intended fo...r public health specialists
more
23 December 2020 This document summarizes WHO recommendations for the rational use of personal protective equipment (PPE) in health care settings and temporary strategies during acute supply shortages. This document also contains 2 Annex sections describing updated PPE use recommendations for health... workers based on the transmission scenario, setting, and activity in the context of COVID-19 (Annex 1), and updated considerations for the decontamination or reprocessing of PPE (Annex 2). This guidance is intended for public health authorities, organizations, and focal persons involved in decisions regarding PPE distribution, management, and use by health workers.
Available in Arabic, French, English, Spanish and Russian
more
This technical report presents results from the FEEDcities Project – Eastern Europe and Central Asia, a cross-sectional survey conducted in Almaty, Aktau and Kyzylorda, Kazakhstan, between July and August 2017, to evaluate the local street food environment. It characterized the vending sites, the ...food offered and the nutritional composition of the industrial and homemade foods available in these settings. The policy implications of the findings are outlined.
The study was conducted within a bilateral partnership between WHO and the Institute of Public Health of the University of Porto, in collaboration with the Faculty of Medicine, the Faculty of Nutrition and Food Sciences and the Faculty of Pharmacy of the University of Porto (WHO registration 2015/591370 and 2017/698514). The study was funded through a biennial collaborative agreement and joint programmes between the Government of Kazakhstan and United Nations agencies in Kazakhstan for Kyzylorda and Mangystau oblasts, a voluntary contribution by the Ministry of Health of the Russian Federation and the Resolve to Save Lives project of Bloomberg Philanthropies.
more
To assess national-level responses to NCDs, WHO has implemented NCD country capacity surveys periodically since 2001. This report is the latest in that series. Since the first survey round, the NCD Country Capacity Survey (NCD CCS) has been conducted a further seven times, most recently in 2021. In ...the survey, completed by the NCD focal point within each country’s ministry of health or similar agency, countries are asked to report on the following topics relating to NCDs: (i) public health infrastructure, partnerships and multisectoral collaboration; (ii) policies, strategies and action plans; (iii) health information systems and surveillance; (iv) health system capacity for detection, treatment and care; and, added for 2021, (v) the impact of the COVID-19 pandemic on NCD-related resources and activities. The questionnaire is web-based and requires supporting documentation wherever possible. In the 2021 round, data were collected from May onwards, with the last survey responses arriving in September. Validation was carried out by WHO regional offices and WHO headquarters. Country responses to previous rounds of the survey were incorporated into the analysis to assess progress since 2010. Although all 194 Member States responded to the survey, data comparisons were restricted to the 160 countries that had responded to all rounds of the survey since 2010.
more
The Federal Centre for Health Education (BZgA) emphasizes the critical role of drug prevention in enhancing public health in Germany. Annually, the country faces significant premature mortality due to substance use: at least 110,000 deaths from smoking, 40,000 from harmful alcohol consumption, and a...pproximately 1,300 from illicit drug abuse.
more
Epidemics and pandemics of infectious diseases are occurring more often, and spreading faster and further than ever, in many different regions of the world. The background factors of this threat are biological, environmental and lifestyle changes, among others. A potentially fatal combination of new...ly-discovered diseases, and the re-emergence of many long-established ones, demands urgent responses in all countries. Planning and preparation for epidemic prevention and control are essential. The purpose of the Managing epidemics handbook is to provide expert guidance on those responses. Building on the first edition, the second edition provides concise and basic up-to-date knowledge with which public health officials can respond effectively and rapidly at the very start of an outbreak. Part I of the handbook provides insights on epidemics of the 21st century and offers context on the upsurge of recent epidemics. Part II has been updated and offers 10 key facts about 19 deadly diseases including tips on the interventions required to respond. Part III presents various Tool boxes that summarize guidance on several important topics. The handbook focuses on practical and indispensable things to know about infectious diseases that are most important for national, political and operational decision-makers; it also links readers to more exhaustive WHO guidan
more
This is a detailed manual giving a step by step approach to undertaking the pharmacovigilance of antiretrovirals. It is intended to be a source of practical advice for Pharmacovigilance Centres and health professionals involved in HIV/AIDS prevention and treatment programmes. A number of WHO publica...tions are available that provide a background to pharmacovigilance and, as far as possible, that material will not be repeated here. Health officials, planners, the staff of Pharmacovigilance Centres, public health teams and all health workers should become familiar with these publications, which are: • Safety of Medicines: A guide to detecting and reporting adverse drug reactions
more