News-Medical.Net January 5, 2026
Public health researchers at Columbia University Mailman School of Public Health used computer modeling to reconstruct how the 2009 H1N1 flu pandemic and the 2020 COVID-19 pandemic unfolded in the U.S. The findings highlight the rapid spread of pandemic respiratory pathogens and the challenges of early outbreak containment. The study, published in the journal Proceedings of the National Academy of Sciences, is the first to comprehensively compare the spatial transmission of the last two respiratory pandemics in the U.S. at the metropolitan scale.
In the U.S., the 2009 H1N1 flu pandemic was responsible for 274,304 hospitalizations and 12,469 deaths, and the 2020 COVID-19 pandemic has so far led to 1.2 million confirmed deaths.
The researchers set out understand the...
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