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2
Vaccines explained
recommended
WHO's 'Vaccine Explained' series features illustrated articles on vaccine development and distribution. Learn more about vaccines from the earliest of research stages to their rollout in countries.
Availble in different languages
WHO-2019-nCoV-genomic_sequencing
The purpose of this TPP is to communicate the minimum and ideal characteristics desired to meet the need for discriminating low levels of risk for transmission, i.e. targeted prevalence thresholds in the surveyed areas. An in vitro diagnostic test is needed for the detection of analyte(s) specific t
...
o Wuchereria bancrofti, Brugia malayi, and Brugia timori to aid in the surveillance of defined geographic areas as to whether infection and/or transmission potential has increased (recrudescence) or decreased (elimination of transmission).
more
22 March 2021
based on information as at 28 February 2021
Rapid Policy Brief Series Series 14: COVID-19 and hypertension
n light of the potential risk posed by SARS-CoV-2 variants, in January 2021 WHO organized an ad hoc consultation to discuss the development of an R&D agenda in response to existing and emerging SARS-CoV-2 variants.
The key objectives were to iden
...
tify the critical research questions related to variants and agree on a research approach to address them. Six breakout groups covered a range of specific issues related to COVID-19 variants: Epidemiology and mathematical modelling; evolutionary biology; animal models; assays and diagnostics; clinical management and therapeutics; and vaccines.
This report is a summary of presentations and panel discussions.
more
WHO has developed this manual in order to strengthen the laboratory diagnosis and virological surveillance of influenza infection.
Vaccines explained (Arabic Version)
recommended
WHO's 'Vaccine Explained' series features illustrated articles on vaccine development and distribution. Learn more about vaccines from the earliest of research stages to their rollout in countries.
22 April 2021
Soil-transmitted helminths are a group of intestinal worms that include Ascaris lumbricoides (giant roundworm), Trichuris trichiura (whipworm), and Ancylostoma spp. (A. duodenale, A. ceylanicum) and Necator americanus (hookworms). Despite the clear biological differences among the different species,
...
their transmission is characterized by the same sequence of events: (i) infected individuals excrete worm eggs through their stool in soil; (ii) under optimal conditions of moisture and temperature the excreted eggs develop into infectious stages; and (iii) finally, infection occurs through oral uptake (Ascaris, Ancylostoma and Trichuris) or skin penetration (Ancylostoma and Necator) of these infectious stages (embryonated eggs and third stage larvae) that reside in the soil and/or in the environment (referring to their common name).
more
Health ministries currently lack effective tools for monitoring and evaluation of schistosomiasis control programmes. Egg detection can be used, but the cost, challenges of obtaining samples, and the need for trained personnel and equipment limit th
...
e frequency of monitoring. The purpose of this TPP is to guide the development of new diagnostic tools to reliably measure when prevalence is above or below a cut-off of 10% in school-aged children. Communities remaining above 10% require annual MDA, while communities below 10% can reduce MDA frequency as long as < 10% prevalence can be maintained. However, the lack of a reliable test has hindered the development of maintenance strategies. The test is also needed to track changes of prevalence > 10% to ensure that annual MDA is reducing overall prevalence.
more
The Compendium of data and evidence-related tools for use in TB planning and programming was developed as a companion document to the People-centred framework for tuberculosis programme planning and prioritization – user guide, published by the
...
World Health Organization (WHO) in 2019. The compendium is intended to support implementation of the people-centred framework user guide. It can also be used independently to inform decisions taken by national tuberculosis (TB) programmes about the implementation of the tools included in this document.
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Despite some improvements, current levels of air pollution still pose a considerable risk to the environment and to human health in the WHO European Region. One issue of concern is that monitoring o
...
f particulate matter is very limited in the countries of eastern Europe, the Caucasus and central Asia. This paper summarizes the evidence about the health effects of air pollution from particulate matter and presents the policy implications, the aim being to stimulate policy-makers to develop more effective strategies to reduce air pollution and its health effects in those countries.
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Medicines and medical devices for 10 000 people for approximately three months
WHO’s antiretroviral treatment (ART) clinic-based acquired drug resistance survey method yields robust estimates of HIV viral suppression and acquired HIV drug resistance in adults, children and adolescents taking both dolutegravir and non-doluteg
...
ravir based regimens.
Results are used to inform ART programme decision making regarding optimal ART regimens and support evaluation of programme quality with respect to maximizing viral load suppression and minimizing emergence of resistance in people taking ART.
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Клиническое определение случая состояния после COVID-19 методом дельфийского консенсуса, 6 октября 2021 г.
recommended
WHO has developed a clinical case definition of post COVID-19 condition by Delphi methodology that includes 12 domains, available for use in all settings. This first version was developed by patients, researchers and others, representing all
...
WHO regions, with the understanding that the definition may change as new evidence emerges and our understanding of the consequences of COVID-19 continues to evolve.
Post COVID-19 condition occurs in individuals with a history of probable or confirmed SARS CoV-2 infection, usually 3 months from the onset of COVID-19 with symptoms and that last for at least 2 months and cannot be explained by an alternative diagnosis. Common symptoms include fatigue, shortness of breath, cognitive dysfunction but also others and generally have an impact on everyday functioning. Symptoms may be new onset following initial recovery from an acute COVID-19 episode or persist from the initial illness. Symptoms may also fluctuate or relapse over time.
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