"The bottom line is every day the publication is delayed, doctors, nurses, hospitals, local health departments, and first responders are behind the information curve and less prepared to protect the health of all Americans," Frieden said in a statement shared with MedPage Today.

The Trump administration told federal public health agencies like the CDC that they are not to communicate health messages for now. The hold includes memos, reports, online posts, website updates and other forms of communication. Scientific meetings were also canceled for the time being, including of advisory panels.