The Trump administration's halt on the CDC's Morbidity and Mortality Weekly Report delays critical bird flu studies, raising concerns of political interference in scientific communication.

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike upward in most states, according to the Centers for Disease Control and Prevention (CDC).

Robert F. Kennedy Jr., President Donald Trump’s pick to run the Department of Health and Human Services, has long opposed using fluoride in drinking water. His confirmation hearing is underway.

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike upward in most states, according to the Centers for Disease Control and Prevention (CDC).

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike upward in most states, according to the Centers for Disease Control and Prevention (CDC).

A Michigan animal sanctuary owner alleged state authorities were inhumane when they culled her birds. She changed the state's H5N1 depopulation code.

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike upward in most states, according to the Centers for Disease Control and Prevention (CDC).

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike upward in most states, according to the Centers for Disease Control and Prevention (CDC).

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike upward in most states, according to the Centers for Disease Control and Prevention (CDC).

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike upward in most states, according to the Centers for Disease Control and Prevention (CDC).

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike upward in most states, according to the Centers for Disease Control and Prevention (CDC).

Studies slated to appear in the CDC's official journal have been swept up in an “immediate pause” on communications by federal health agencies ordered on President Donald Trump’s first full day in office.