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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Uganda is Africa's largest refugee-hosting country and ranks fifth globally. Over the decades, Uganda has hosted refugees from nations including South Sudan, the Democratic Republic of Congo, Eritrea, Somalia, Sudan, Burundi, and Rwanda. As of early 2024, it hosts 1 600 000 refugees, primarily in re...fugee settlements in northern and southwestern Uganda, and in Kampala City. Thirteen districts accommodate 94% of these refugees.
The World Health Organization (WHO) and Uganda’s Ministry of Health conducted a joint review mission to provide a comprehensive overview of the health system's response. The aim was to understand service delivery challenges and identify opportunities to further support Uganda in strengthening health system capacity and ensuring continued access to health services for refugees, migrants and host communities.
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Technical report
This manual aims to provide information about the methods for investigating outbreaks of hepatitis E, and measures for their prevention and control. In addition, the manual gives information about the causative agent – known as the hepatitis E virus (HEV) – its epidemiology..., clinical manifestations of the disease and diagnosis.
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Early detection, assessment and response to acute public health events:
Chapter 8, Prison and Health, published
National Tuberculosis Control Program; Mycobacterial Disease Control National AIDS/STD Program
Introduction
Capter A.1
Ethics and international child and adolescent psychiatry
This new plan has been developed to build on successes made and lessons learnt from implementation of the two initial plans and to provide a short to medium term strategic anchor against which preparedness and response plans to the corona virus disease COVID-19 epidemic in the country should focus o...n for the period June 2021 to June 2022.
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The social protection landscape for people affected by TB in the WHO South-East Asia Region
Interim practical manual supporting implementation of the WHO guidelines on core components of infection prevention and control programmes
2nd edition - Published in 2003, the first WHO/HAI medicine prices manual Medicine Prices – A
New Approach to Measurement Draft for field-testing provides a draft methodology and tools to conduct national medicine prices and availability surveys. This second edition of the survey manual has been... updated to reflect the wealth of practical
experience in conducting medicine prices and availability surveys garnered in the project’s first two phases.
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Men lag behind women regarding use of HIV services and represent the majority of individuals living with uncontrolled HIV, advanced HIV, and who experience HIV-related mortality. Men (15+) globally are less likely than women (15+) to know their HIV status (83% for men vs 91% for women), be on antire...troviral treatment (ART) (72% for men vs 83% for women) and reach viral suppression (67% for men vs 78% for women).
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