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Hundreds of Harvard researchers have fallen victim to the freeze on funding by the Trump administration. The halt in federal funding has meant some of the world’s most prominent researchers exploring everything from opioid addiction to how diseases like cancer progress are laying off young researchers and shelving years or even decades of research. Some research might be lost forever. The funding cuts are part of a monthslong battle that the Trump administration has waged against some the country’s top universities. It has taken a particular hard and aggressive line against Harvard, freezing funding after the university rejected a series of demands from a federal antisemitism task force.

Research shows mRNA vaccines saved millions of lives during the COVID-19 pandemic. Now scientists are using that Nobel Prize-winning technology to try to develop vaccines and treatments against a long list of diseases including cancer and cystic fibrosis. But this week, U.S. Health Secretary Robert F. Kennedy Jr., a longtime vaccine critic, canceled $500 million in government-funded research projects to create new mRNA vaccines against respiratory illnesses that might trigger another health emergency. That dismays infectious disease experts who note that mRNA allows faster production of shots than older vaccine-production methods, buying precious time if another pandemic were to emerge.