Public Health Knowledge Hubs

Explore the Hubs: A Curated Guide to Modern Public Health

Public health is more than a single field—it’s a system of systems. It spans vaccines, disease surveillance, digital infrastructure, environmental change, misinformation, mental health, and more. To help readers navigate this complexity, Dr. Jay Varma’s work is organised into thematic Hubs—each focused on a core area of health systems and modern threats.

Each Hub brings together original articles, explainers, peer-reviewed research, and public commentary. These aren’t static libraries—they evolve with the science. Together, they form a living, interconnected resource for understanding how public health protects lives, communities, and the future.

Core Public Health Hubs

AI in Public Health

How artificial intelligence is reshaping surveillance, diagnostics, and emergency response—while also introducing new risks around bias, misinformation, and trust.

Infectious Disease & Outbreaks

Real-world insights from the front lines of outbreak detection and control. Covers zoonotic spillovers, epidemic response, and lessons from global preparedness failures.

Foodborne & Environmental Health

Investigates the systems that protect us from contaminated food, water, and environmental exposures—and the policy gaps that still put populations at risk.

Sexually Transmitted Infections (STI)

Covers the science and strategy of HIV, syphilis, gonorrhea, and other STIs—framed through equity, stigma reduction, and sexual health policy grounded in evidence.

Public Health Policy & Systems

Explores how funding, governance, leadership, and political pressure shape public health outcomes—from agency reforms to crisis communication.

Vector-Borne Infections

Focuses on mosquito- and tick-borne diseases like West Nile, Zika, and dengue—plus how urbanisation and climate change are shifting global risk.

Respiratory Viruses

Explores the evolving landscape of airborne pathogens including influenza, measles, RSV, and COVID-19—alongside the critical role of vaccines and clean air.

Vaccine-Preventable Diseases

Celebrates the impact of immunisation while tackling today’s challenges—like waning coverage, disinformation, and global access.

Systems-Level & Cross-Cutting Hubs

Antimicrobial Resistance & Healthcare-Associated Infections

Traces the rise of drug resistance and explores the systems—labs, policies, and global cooperation—needed to slow its spread.

Mental Health, Wellness & Communication

Highlights the emotional, psychological, and relational dimensions of public health—from trauma-informed care to burnout recovery and trust-building.

Public Health Explained

An educational hub for students, teachers, and the curious. Breaks down core concepts in epidemiology, prevention, data, and systems thinking.

Thermometer HQ – Media & Appearances

An archive of Dr. Varma’s interviews, articles, podcasts, and public briefings—translating expert insights into plain language for wide audiences.

Future-Focused Hubs

Climate Change & Infectious Disease

Connects environmental disruption to pandemic risk—exploring how rising temperatures, migration, and biodiversity loss reshape infectious disease landscapes.

Digital Health & Data Modernization

Covers the tools and standards that power public health—from data interoperability and APIs to privacy, AI, and ethical digital infrastructure.

Public Health Education & Workforce Development

Looks at how we train, support, and retain the next generation of public health professionals—including leadership development and burnout prevention.

Each Hub is a gateway into a vital area of modern public health—curated to help you move from big-picture understanding to practical insight. Whether you’re shaping policy, designing systems, educating students, or simply trying to stay informed, you’ll find what you need to think more clearly—and act more effectively—on the issues that matter.