Dr. Tom Frieden, the CDC director during the Obama administration, said he was pleased to see the journal return but also concerned that it “doesn’t contain any reports on bird flu spreading in animals and people, the new strain of mpox spreading or other emerging health threats.”

Jan. 31, the CDC's chief science officer sent an internal email that informed the agency’s division heads that all papers written or co-written by CDC scientists are being withdrawn and that agency scientists should take their names off of papers they are collaborating on with external scientists, Reuters reported.

A federal scientific publication has returned from a forced two-week hiatus with two papers examining the health effects of wildfires in Hawaiʻi and California. The Centers for Disease Control and Prevention resumed publication of the Morbidity and Mortality Weekly Report on Thursday.