Are We Ready? Gauging the Nation's Pandemic Preparedness
"A 2015 report reveals strengths and weaknesses in US laboratory and epidemiology capacity to handle a major influenza outbreak."
The threat of influenza pandemics is a persistent concern for global health. The 2009 H1N1 pandemic and the ongoing emergence of avian influenza viruses, like H7N9, underscore the need for constant vigilance and preparedness. Understanding a nation's readiness is crucial for effective response strategies.
In 2015, the Centers for Disease Control and Prevention (CDC) conducted a comprehensive assessment called the Pandemic Influenza Readiness Assessment (PIRA) to evaluate the preparedness of the United States for the next influenza pandemic. This assessment focused on the laboratory and epidemiology capacities of public health jurisdictions across the country.
This article delves into the key findings of the PIRA report, providing insights into the strengths and weaknesses of the U.S. public health system in detecting, responding to, and managing a potential influenza pandemic. By understanding these findings, we can better prepare for future threats and ensure the health and safety of our communities.
Measuring Preparedness
The national inventory of core capabilities for pandemic influenza preparedness and response uses indicators as reasonable proxies or measures of preparedness and response capability. This framing supports planning and evaluation, but the source does not provide a single definitive statistic for national readiness.
Key Findings from the Pandemic Influenza Readiness Assessment
The PIRA report, which included responses from all 62 Public Health Emergency Preparedness (PHEP) awardee jurisdictions, revealed a mixed bag of capabilities. While many jurisdictions demonstrated strong capacities in certain areas, gaps remained that could hinder an effective pandemic response.
- Differentiating novel influenza A viruses from seasonal influenza viruses.
- Electronically transferring laboratory, surveillance, and case investigation data.
- Transferring electronic death records.
- Conducting surveillance for influenza-associated mortality in adults.
Surveillance and Early Detection
The 2015 U.S. and territories Pandemic Influenza Readiness Report describes laboratory and epidemiologic data as vital for identifying a novel influenza A virus and informing public health response. The Oregon Child Absenteeism Due to Respiratory Disease Study (ORCHARDS), conducted in Oregon, WI, monitors influenza-like-illness-specific student absenteeism daily in kindergarten through Grade 12 and assesses its potential for early detection of accelerated transmission. A CDC mapping of the U.S. domestic influenza virologic surveillance landscape reports that surveillance relies on specimens collected from symptomatic patients during medical encounters, where testing is primarily for diagnosis rather than surveillance. A 2026 study on resilient, response-ready influenza vaccination programs focuses on middle-income countries and notes a lack of information about the factors that contribute to program resilience.
Capacity Gaps and Planning Challenges
During the H1N1 response in the San Francisco Bay Area, laboratory capacity often helped local health departments investigate disease and implement control measures, but testing capacity varied across the region and even well-equipped laboratories exceeded their capacity. A 2012–2013 survey of diagnostic testing in U.S. hospitals cautioned that reliance on insensitive assays to detect influenza may detract from optimal clinical management. The CDC says pandemics occur infrequently, yet planning is important because response is complex and pandemics can affect everyone in a community. Its National Pandemic Strategy aims to limit spread, mitigate disease, suffering and death, and sustain infrastructure while mitigating economic impact.
Diagnostics and Epidemiology Capacity
A report on developing diagnostics for the novel coronavirus 2019-nCoV described two one-step real-time reverse transcription polymerase chain reaction assays reported by Chu and colleagues. Separately, the 2017 assessment of state health department epidemiology capacity found substantial to full capacity for investigating health problems in 92% of departments and monitoring health status in 84%. Capacity was lower for evaluating effectiveness, at 39%, and applied research, at 29%. These findings describe different parts of preparedness: diagnostic assay development and the uneven distribution of epidemiology capabilities.
Moving Forward: Strengthening Our Defenses
The PIRA report serves as a valuable tool for guiding future efforts to enhance pandemic preparedness in the United States. By addressing the identified gaps and building upon existing strengths, the nation can be better equipped to face the inevitable challenges posed by future influenza pandemics. Continuous investment in public health infrastructure, training, and research is essential to protect the health and well-being of our communities.
Building Readiness for the Next Pandemic
The CDC explains that a pandemic can occur when a new influenza A virus can easily infect and spread among people. A 2021 review of influenza pandemic preparedness surveys its history and current state and proposes additional measures for improvement. The U.S. National Academy of Medicine initiative, launched in 2020, was designed to collect, understand, and leverage lessons from COVID-19 for the next influenza pandemic; it produced four outputs, according to a 2023 article. WHO identifies regularly updating national influenza pandemic plans and building surveillance and response capacity through seasonal epidemics and zoonotic outbreaks as essential preparedness components.
A Global Framework
WHO’s Pandemic Influenza Preparedness (PIP) Framework aims to implement a global approach to pandemic influenza preparedness and response. Its stated scope makes preparedness a matter of international coordination, not only domestic planning. The source description does not specify particular measures or assess how well the framework has been implemented.
Preparedness Across Communities
WHO’s Unity Studies initiative provides standardized protocols intended to support respiratory pathogen pandemic preparedness through health systems during the interpandemic period. OpenLearn’s influenza case study describes the 2009 swine flu pandemic as causing widespread panic in parts of the world, although it resulted in relatively few fatalities. Imperial College London describes more than 120 multidisciplinary research groups working in pandemic preparedness, alongside participation in global collaborative trials, networks, and advisory groups. The CDC Museum notes that preparedness has advanced since 1918 but remains shaped by political, social, and cultural context, with room for improvement.