Some scientific meetings involving the NIH were abruptly cancelled this week, leaving researchers concerned about their work and the implications for science under the second Trump administration. An email from an NIH official to a group that reviews federal grant applications for scientific research stated the following: "At the present time,

In an unprecedented move, research-grant reviews have been suspended indefinitely at the world’s largest public funder of biomedical research.

A pause in communication is typical during a new administration’s transition. But some scientists fear that tying up NIH grant funding for any length of time could disrupt ongoing, time-sensitive clinical research.