Why Post-COVID Resilience Never Returned
It’s no longer about a single crisis.
The World Health Organization (WHO) declared that COVID-19 was no longer a Public Health Emergency of International Concern (PHEIC) in May 2023. The workforce casualties it created still linger.
A 2025 study based on the COVID-19 Healthcare and Medical Personnel Study (CHAMPS) registry tracked resilience, burnout, and post-traumatic stress in hospital nurses from 2020 through 2022. Acute post-traumatic stress eased over that period, but burnout held steady at roughly 40%, and low resilience remained common, reported by a quarter to a third of nurses at every measurement point. The acute trauma faded. The underlying deficit didn’t.
A 2024 survey of Greek hospital nurses, initiated 14 months after the WHO ended its COVID-19 Public Health Emergency of International Concern declaration, still found insomnia symptoms in 56% of respondents and a 46.8% occupational burnout rate. The official crisis is over, but the liability remains.
That contrast—a fleeting catastrophe versus an ongoing structural deficit—is the principal lesson healthcare leadership still hasn’t fully understood. Yet current data makes the cost of that gap hard to ignore.
Resilience Was Never Autonomous
A 2025 review synthesizing 22 studies on nurse resilience during the pandemic found a moderate average resilience score across the workforce. It identified the same pattern across almost every study: resilience calculated with organizational conditions including
Staffing competence
Perceived competence
Leadership trust
Burnout, depressive symptoms, anxiety
None of the highest predictors showed any relation to personality. All of them were conditions controlled by the employer.
That conclusion reframes the intended purpose of a resilience program. Traditional wellness initiatives like mindfulness apps and employee assistance programs only hide the symptoms of burnout. They do not help repair unsafe staffing ratios, dire resource shortages, or communication differences that create faulty symptoms. Post-pandemic data indicates the gap has not resolved itself.
What Retention Numbers Show Now
The financial and staffing effects are no longer theoretical. The American Hospital Association’s 2025 Cost of Caring report estimates hospital labor costs at $890 billion in 2024, 56% of total hospital expenses. Contract staffing alone consumes tens of billions of dollars a year.
The 2025 NSI National Health Care Retention & RN Staffing Report found 22.3% of newly hired RNs quit within their first year. A 2025 BMC Nursing scoping review of peri-and post-COVID retention strategies concluded that strategic leadership and work-life balance were the interventions that most consistently kept nurses staying. Recognition awards and wellness perks were not enough.
Three findings recur across the 2025-2026 retention and resilience literature, and they track closely with what the original pandemic-era research predicted:
● Resilience scores track organizational stability metrics (staffing ratios, leadership responsiveness) more precisely than they track individual wellness program participation.
● Burnout and insomnia symptoms calculated more than a year after the WHO ended the pandemic emergency remain elevated, indicating the damage outlasting the acute crisis by years, not months.
● The first year of employment concentrates turnover, suggesting that new nurses absorb the accumulated strain of an already-depleted system rather than start fresh.
Preparedness Planning’s Blind Spot
Most healthcare systems designed emergency preparedness plans around surge capacity, supply chain logistics, and infection control, and those plans largely worked. Yet few designed comparable plans for sustained psychological demand on clinicians during a prolonged crisis. Multi-year data now shows that the substantial gap outlived the emergency itself.
Workforce preparedness fails when clinicians' mental health is an afterthought. True resilience requires making psychological sustainability a core strategic pillar on par with supply chains and staffing models. Otherwise, leaders fight yesterday's battles while ignoring the retention crisis happening right now.
COVID Was the Dress Rehearsal
Workforces that dealt with COVID never got the time to recover before the next infectious disease threat arrived. The United States documented more measles infections in 2025 than in any year since 1991, according to CDC surveillance data, 2,289 confirmed cases across 45 jurisdictions, including two pediatric deaths in the West Texas outbreak.
Also, highly pathogenic H5N1 avian influenza affecting livestock and poultry infected at least 70 people in the U.S. since 2024, with a global case fatality rate near 48%. It’s a serious risk profile that researchers are now studying to protect human-animal frontline health workers before broader transmission begins.
For an already depleted workforce, this is not an imaginary stress test. Previous research on nurse and infection-preventionist workload found that measles and mumps exposures alone pushed two-thirds of surveyed preventionists past an extra hour of work. All of it lands on staff still recovering from the last crisis, not on anyone starting a fresh shift.
A 2025 study of 1,579 infectious-disease nurses in China found high burnout in 62% of respondents. Again, resilience served as a buffer between perceived stress and burnout. Much like pandemic-era research under similar organizational conditions, this study measured these effects against a different pathogen.
COVID exposed the resilience deficit. Measles, H5N1, and whatever future pathogen will keep testing it on a workforce that never had the leadership or recovery time to close the gap.
Why This Matters Now
Healthcare must prepare for many unpredictable pandemics, not just a single one. The same structural stressors of chronic understaffing and rising patient acuity remain. Financial pressures lock labor costs and turnover into a costly cycle; data for 2025-2026 shows employee coping programs haven’t broken that cycle. Instead of wellness and team awards, organizations must develop leadership transparency and psychological well-being into the workplace blueprint. Nurses should never have to carry a resilience burden alone. The numbers now prove it.
References
Baskin, R. G., Copel, L. C., Mensinger, J. L., Brom, H., & Alamri, M. S. (2025). Nurse resilience, burnout, pandemic stress, and post-traumatic stress: A secondary analysis of a
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Kunjavara, J., George, R. J., Kumar L., M., Sam, S. T., & Mannethodi, K. (2025). Unbreakable in crisis: A systematic review exploring nurse resilience and contributing factors during the COVID-19 pandemic. Public Health Challenges. https://doi.org/10.1002/puh2.70015
Sikaras, C., Pachi, A., Alikanioti, S., Ilias, I., Sideri, E. P., Tselebis, A., & Panagiotou, A. (2025). Occupational burnout and insomnia in relation to psychological resilience among Greek nurses in the post-pandemic era. Behavioral Sciences, 15(2), 126. https://doi.org/10.3390/bs15020126
Hynes, L., Geraghty, S., McChlery, S., Smyth, A., Brar, R., & Clark-Burg, K. (2025). Nurse retention in peri- and post-COVID-19 work environments: A scoping review of factors, strategies and interventions. BMC Nursing, 24(1), 299. https://doi.org/10.1186/s12912- 025-02908-1
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Wiley, K., King, C., Seale, H., & Degeling, C. (2025). Optimising our response to a potential H5N1 avian influenza pandemic: Preparing to protect people working at the human– animal interface. Medical Journal of Australia, 223(3). https://doi.org/10.5694/mja2.52664
Huang, Y., Wang, Z., Li, Y., Zhao, Z., Wang, W., Cai, C., Wu, X., Liu, L., & Chen, M. (2025). Anxiety and burnout in infectious disease nurses: The role of perceived stress and resilience. BMC Nursing, 24, Article 3. https://doi.org/10.1186/s12912-024-02649-7
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