At an event marking the launch of Moderna’s Phase 3 clinical trial for its mRNA coronavirus vaccine in Miami this week, US FDA Commissioner Stephen Hahn repeated assurances that his agency would not cut corners in approving a COVID-19 vaccine. Hahn’s remarks come as some observers have raised concerns that the FDA might be pressured to approve a vaccine before the November election without adequate evidence of safety and efficacy. Officials have also sought to reassure the public that an eventual vaccine will be held to rigorous standards as recent polls have found a significant number of Americans are hesitant about getting a coronavirus vaccine. Learn More