UNAIDS and the World Health Organization have published this updated guidance on ethical considerations in HIV prevention trials. The new guidance is the result of a year-long process that saw more than 80 experts and members of the public give inputs and is published 21 years after the first editio...n appeared.
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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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The objective of this guidance document is to support the public health professionals
in implementing effective surveillance of cholera in at-risk, endemic and epidemic
areas. This document has been developed by the Surveillance Working Group of the
Global Task Force for Cholera Control (GTFCC) a...t the World Health Organization based
on the existing documents, guidelines, tools and articles related to surveillance of
cholera disease, as well as technical discussions with experts held during GTFCC
meetings.
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9 March 2022, Timely and accurate diagnostic testing for SARS-CoV-2 is an essential part of a comprehensive COVID-19 response strategy. Ag-RDTs can be performed by individuals in which they collect their own specimen, perform a simple rapid test and interpret their test result themselves at a time a...nd place of their choosing, termed COVID-19 self-testing. This interim guidance provides a new recommendation that COVID-19 self-testing, using SARS-CoV-2 Ag-RDTs, should be offered as part of SARS-CoV-2 testing services. It also includes implementation considerations that can guide decisions on whether, and how, to adopt self-testing in different contexts, including the populations being prioritized; the disease prevalence in that population; and the impact on accessibility of testing, health care services and result reporting.
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The 2016-2017 Biennial report presents an overview of WHO Namibia's main achievements and challenges and highlights its vision for the next five years.
Integrated Management of Acute Malnutrition National Guidelines
National Tuberculosis and Leprosy Conrol Programme