Trump quietly closed the U.S.'s vaccine safety office last year. Researchers are scrambling to replace it.

Developers will start rolling out their COVID-19 vaccines in the coming months, leaving U.S. health officials to test their long-term safety. But that won't be easy, especially given that the Trump administration quietly shut down the office responsible for ensuring the safety of vaccines last year, The New York Times reports.Before the late 1980s, vaccine safety relied on parents, doctors, vaccine makers, and hospitals to step forward and report symptoms they feared were connected to a vaccine.