A National Academies of Sciences, Engineering, and Medicine committee will conduct a series of public workshops to examine the current U.S. Government (USG) working definition for Long COVID and related technical terms.

The workshop series will consist of several sessions designed to:

• Explore literature on definitions for Long COVID in the United States, including but not limited to, definitions that are currently used for clinical care, research, surveillance, and health communication;
• Learn about challenges and barriers due to currently available definitions for Long COVID; and
• Seek input from various stakeholder groups relating to refinement, dissemination, and implementation of a definition for Long COVID.

The workshop series will conclude with a 2-day workshop discussing potential considerations for refined Long COVID definitions, terminology, and harmonizing efforts for patient engagement, clinical care, research, surveillance, across USG and relevant stakeholders.
The committee will define the specific topics to be addressed, develop the workshop agendas, and select and invite speakers and other participants.
Building on the workshop series, the committee will integrate and synthesize information from the stakeholder engagement and information gathering and produce a letter report that will:

• Review additional evidence for definitions of Long COVID;
• Consider efforts that have already been completed on this topic area;
• Recommend new definitions for Long COVID and related technical terms, with descriptions of the circumstances under which these new definitions and terminology should be adopted.

The committee will make recommendations to establish considerations for maintaining an up-to-date definition for Long COVID and related technical terms.