Public Health Emergency of International Concern (PHEIC)

A formal WHO declaration for global health threats, such as major outbreaks.

What is a Public Health Emergency of International Concern (PHEIC)?

A Public Health Emergency of International Concern — usually shortened to PHEIC (pronounced fake or fee-ik) — is the highest level of global health alert that the World Health Organization (WHO) can declare under the International Health Regulations (IHR). A PHEIC is an extraordinary event that meets three criteria:

1. It poses a public health risk to other countries through international spread of disease.
2. It may require a coordinated international response.
3. It is serious, sudden, unusual, or unexpected.

Declaring a PHEIC doesn’t give WHO any enforcement power, but it sends a clear signal that the world needs to act by improving surveillance, sharing information, deploying resources, and coordinating travel or trade guidelines.

Why a PHEIC Matters in Infectious Disease Control

The PHEIC declaration is a vital tool for galvanizing international attention and resources to a major health threat. It obligates countries to report cases, share data, and implement control measures, while also helping mobilize funding and technical assistance. Importantly, it can also guide travel advisories, vaccine development, and public health preparedness.

Key Features of a PHEIC

• Declared by WHO under the International Health Regulations (IHR)
• Signals a serious international public health threat
• Requires rapid international collaboration and response
• Helps coordinate travel, trade, and public health guidance
• Mobilizes funding and technical support
• Triggers accelerated research and development of tools like vaccines and diagnostics

Controversies and Challenges

• Political sensitivity and potential economic impacts on affected countries
• Debates over timing of declaration — too early vs. too late
• Balancing urgency with evidence-based decision-making
• Managing misinformation and public fear
• Ensuring equity in response resources and vaccine access

Each PHEIC declaration has shaped global health action, influencing funding, research, and national responses to these threats.

Major PHEIC Declarations Since 2005

• 2009 H1N1 Influenza Pandemic
• 2014-2016 Ebola Outbreak in West Africa
• 2016 Zika Virus Epidemic in the Americas
• 2018-2020 Ebola Outbreak in Democratic Republic of Congo
• 2020 COVID-19 Pandemic (declared January 2020)
• 2022 Mpox (Monkeypox) Global Outbreak
• 2022-2023 Wild Poliovirus Circulation in Multiple Countries