Public health decision-making under conditions of ongoing airborne infectious disease risk requires shared models that are stable, portable, and adaptable to local context. This section presents a small set of analytic models used throughout this sub-site to support consistent reasoning, planning, and communication. These models do not prescribe policy. They provide ways of thinking that … Continued
Introduction This page presents core elements of coherent public communication about airborne infectious disease prevention. It provides foundational information and framing that can be communicated directly to the public, or indirectly through common formats such as questions and answers, myths and facts, public advisories, and explanatory materials. The purpose of this page is not to … Continued
Public health decision-making takes place in a changing environment shaped by epidemiology, health-system capacity, and social conditions. This page provides contextual orientation, not real-time reporting, to support consistent reasoning and communication across settings. The purpose of this page is to clarify what has changed in the last few years, what has not, and what should … Continued
Healthcare settings present elevated risk during periods of increased respiratory disease activity due to the concentration of people receiving medical care, prolonged indoor exposure, and continuous patient throughput. This use case illustrates how shared models and framing apply in clinical environments. 1. Scope of This Use Case This page addresses: It does not: 2. Risk … Continued
Schools and educational environments play a central role in community health due to high occupancy, repeated contact, and the importance of continuity for learning and development. This use case illustrates how shared public health models apply to educational settings and how risk reduction can support stable, in-person education under evolving respiratory disease conditions. 1. Scope … Continued
Public health systems are currently facing simultaneous increases in multiple respiratory infectious diseases, occurring across regions and settings. This page summarizes the present situation to support context-appropriate planning and communication by local and regional public health agencies. The purpose of this page is to explain why risk conditions have changed, why certain protective measures are … Continued
A new year always arrives with hope. Fresh calendars. New routines. A quiet promise to take better care of ourselves and one another. As we step into the months ahead, one of the most meaningful resolutions we can make is also one of the simplest: to stay healthy in ways that protect not just ourselves, … Continued
In this presentation from December 2025, Mark Ungrin discusses “How did things get this bad, and what can we do about it?”—looking at how science and pseudoscience shape public policy, and what practical steps can help rebuild evidence-based decision-making.
This post is part of a new blog series focusing on Long COVID. The author, Rachel Nussbaum, is a Master of Public Health and COVID-19 long-hauler, with three years of lived experience with Long COVID. Through this series, WHN aims to raise awareness of Long COVID and long-hauler experiences, as well as the implications of … Continued
January 7, 2026 The letter below (a button to download it as a .pdf file is at the bottom of this page) was sent to seven top officials at the World Health Organization on Wednesday 7 January. Press coverage: The Guardian (9 Jan 2026); The BMJ (9 Jan 2026); MyADS / Association for Dental Safety … Continued