Multiple studies now confirm earlier research: Dexamethasone and hydrocortisone, drugs that reduce an immune system's overreaction, can help reduce deaths of hospitalized COVID-19 patients.
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Award-winning journalist Richard Harris has reported on a wide range of topics in science, medicine and the environment since he joined NPR in 1986. In early 2014, his focus shifted from an emphasis on climate change and the environment to biomedical research.