Sgt. Maj. Alicia C. Singer accepts the non-commissioned officer sword from Maj. Gen. Dean G. Sienko, commander of the U.S. Army Public Health Command at a Change of Responsibility ceremony on Aberdeen Proving Ground-South July 23. Singer will serve as the interim command sergeant major and senior enlisted advisor at the USAPHC. Outgoing Command Sgt. Maj. Gerald C. Ecker (background) will serve as the new command sergeant major for the U.S. Army Medical Department Center in School at Joint Base San Antonio, Texas.