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The first medical interventions were often individualized but ineffective, because doctors lacked an understanding of disease biology. As medicine became more scientific, physicians started grouping patients by disease. Now, genetic insights let doctors consider their patients' unique make-up when prescribing treatments.
The US Precision Medicine Initiative (PMI) aims to gather health data on at least one million volunteers. Kathy Hudson, deputy director for science, outreach and policy at the US National Institutes of Health (NIH), led its creation, and spoke to Nature about the challenges she faced.
More money than ever is being invested in research and development. Countries that previously spent little are now pumping money into science to secure their future economic growth. By Alla Katsnelson, infographic by Alisdair Macdonald.
Chinese researchers are benefiting as the government looks to science to lead the economic transition to become a world-leader in the production of high-value technology.
Germany's Excellence Initiative was highly debated. With its successor approved, scientists are asking whether equality and scientific freedom can be preserved in a world of competition.