The Centers for Disease Control and Prevention is going dark, along with other federal agencies within the umbrella of the U.S. Department of Health and Human Services. This week, the returning Trump administration told these agencies to stop talking to the public—for how long, no one knows.

With federal health agencies such as the Atlanta-based Centers for Disease Control and Prevention under a temporary freeze on public communications, some data and publications have not been released on their normal schedule.

Federal health officials have been instructed to temporarily stop any “external communications” to the public, according to two officials with knowledge of the situation.

President Donald Trump's first week in office came with big changes to U.S. health agencies, including the pausing of all external communications and banning travel.

The move impacts everything from major food recalls to vital public health warnings. Experts explain what that means for you and what scares them.