But HHS and other organizations have taken actions to alleviate the shortages, which began with the 2008-2009 recession.
Experts fear the move could undercut US and global efforts to monitor and respond to infectious disease outbreaks.
The declaration provides immunity for certain claims, including loss caused by or related to administration or use of countermeasures to diseases, threats, or conditions.
Officials said the purchase agreement with CSL Seqirus is part of longer-term plans to shore up vaccine supply against a wider range of pathogens that have pandemic potential.
CEPI and the WHO urge scientists and political leaders to bolster research to prepare for the next pandemic by focusing on families of pathogens and select pathogens.
The authors of the pandemic readiness report point to surges of H5N1 in mammals and of mpox deaths in DR Congo children as some of the latest threats in the face of preparedness gaps.
The group steered away from defined cutoff points such as "droplets" and "aerosols" that scientists have used to distinguish larger particles from smaller particles.
If its steps are implemented, the GAO says aviation will be better able to address communicable disease threats and minimize disruptions.
The Home Test to Treat program offers home COVID and flu testing, telehealth visits, and treatment—if needed—for uninsured and underinsured adults.
CEPI and the University of Oxford have committed $80 million to the development of a vaccine targeting "Disease X," or unknown pathogens with pandemic potential.
