HIV testing programmes need to ensure that all clients who test for HIV are provided with correct diagnoses. The accuracy of HIV testing is critical to prevent misdiagnosis, as the consequences of giving an incorrect test result can be serious for clients, HIV testing services, HIV programmes and pu...blic health.
With the evolution of global HIV epidemiology, HIV testing approaches must also evolve to maintain accuracy and efficiency in population-level diagnosis. Reports suggest that misdiagnosis of HIV status may occur when suboptimal testing algorithms and out-of-date testing strategies are used. As a result of changing epidemiology and declining HIV positivity in testing, WHO recommends all countries use a standard three-test strategy to ensure a PPV of at least 99%, minimizing false-positive misdiagnosis. The WHO-recommended HIV testing strategy, along with quality assurance measures such as retesting to verify a positive diagnosis prior to initiation of HIV treatment, is cost-effective as it prevents misdiagnosis and unnecessary initiation of costly lifelong treatment.
This implementation guide provides practical advice on switching to a three-test strategy and instituting other measures that can help national HIV programmes deliver high-quality, accurate HIV testing services and ensure that misdiagnosis is minimized.
more
2023 is seeing intense heatwaves. According to a July 2023 briefing by the World Meteorological Association temperatures will frequently reach above 35–40°C in many places across the Mediterranean region, with temperatures in the Middle East and southeastern Türkiye reaching up to 45°C and, in ...North Africa, 44–49°C. April–May 2023 also saw temperature records broken across many parts of Asia, including Thailand, Laos and Myanmar.
The IPCC predicts that 420 million people will be exposed to extreme heat and heatwaves in the near future. Hundreds of thousands of people die from preventable heat-related causes each year, while temperature extremes and wildfires cause devastation to lives and livelihoods. According to the WMO, ‘heatwaves are amongst the deadliest natural hazards [and] heat is a rapidly growing health risk’.
more
• Leptospirosis is a disease that is caused by
spirochete bacteria in the genus Leptospira.
There are 10 pathogenic species, and more
than 250 pathogenic serovars.
• While leptospirosis occurs worldwide, it is
more common in tropical or sub-tropical
climates.
The goal of the global outbreak response for monkeypox is to stop human-to-human transmission of monkeypox, with a priority focus on communities at high risk of exposure which may differ according to context, and to effectively use strong public health measures to prevent onward spread of the diseas...e. Judicious use of vaccines can support this response. This interim guidance, developed with the advice and support of the Strategic Advisory Group of Experts (SAGE) Working Group on smallpox and monkeypox vaccines, provides the first WHO recommendations on vaccines and immunization for monkeypox. Key points follow.
more
Chapter 21 from "Where there is no doctor"
THIS LEAFLET AIMS AT GUIDING YOU THROUGH THE VERY FIRST DAYS OF AN OUTBREAK
Clincial Practice Guidelines
This series of supportive tools are based on the WHO Therapeutics and COVID-19: living guideline. They are intended to provide supportive information for healthcare workers who are prescribing, administering and monitoring patients receiving nirmatrelvir-ritonavir for non-severe COVID-19.
Guidance for health care workers.
Both the REGN-EB3 and mAb114 are recommended for use in EVD. The two drugs should not be given together. The choice of which monoclonal antibody to use depends on availability, including emerging information about effectiveness.
This year’s report should dispel any lingering doubts that the world is moving backwards in its efforts to end hunger, food insecurity and malnutrition in all its forms. We are now only eight years away from 2030, but the distance to reach many of the SDG 2 targets is growing wider each year. Ther...e are indeed efforts to make progress towards SDG 2, yet they are proving insufficient in the face of a more challenging and uncertain context. The intensification of the major drivers behind recent food insecurity and malnutrition trends (i.e. conflict, climate extremes and economic shocks) combined with the high cost of nutritious foods and growing inequalities will continue to challenge food security and nutrition. This will be the case until agrifood systems are transformed, become more resilient and are delivering lower cost nutritious foods and affordable healthy diets for all, sustainably and inclusively.
more