Mark Milley, chairman of the Joint Chiefs of Staff, tested positive for COVID-19 on Sunday.

State of play: Joint Staff spokesperson Col. Dave Butler said in a statement that Milley — who is fully vaccinated and has received a booster shot — is experiencing "very minor symptoms" and is "working remotely and isolating himself."

• Butler said that all other "Joint Chiefs of Staff except for one" have tested negative for the virus.
• The other joint chief to test positive was Marine Corps Commandant Gen. David Berger, commandant spokesperson Maj. Eric Flanagan told Axios.

What he's saying: "Gen. Milley's most recent contact with President Biden was on Wednesday, Jan. 12" during Gen. Raymond T. Odierno's funeral, Butler said.

• Milley "tested negative several days prior to and every day following contact with the President until yesterday," he added.