Health shocks reallocate the direction of medical research
Does medical research follow changing health needs? Linking publication output to disease burden across 204 countries and territories, we find that research has become more responsive but large gaps between places remain. Outbreak alerts are followed by research surges concentrated after 2000, and philanthropic and corporate funders support different disease portfolios.
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We examine whether research systems reallocate scientific effort as health needs change. We assemble a global disease–location panel for 204 countries and territories (1990–2021) by linking disease-specific publication output to disease burden in the same place and year. Using large language models, we extract diseases from article text, map them into a disease classification, and classify research funders by type. We estimate how publication output co-moves with disease burden within countries and diseases over time, and use event-study designs around the timing of outbreak alerts, including models with alerted-cell pre-outbreak trends. We find that responsiveness to endemic burden has increased over time but remains highly uneven across locations; outbreak alerts are followed by rapid, statistically significant research surges concentrated after 2000; and funder portfolios differ sharply in the diseases they support, with philanthropic funders tilted toward several diseases concentrated in lower-income settings and corporate funders tilted toward major non-communicable diseases.