Dr. Spencer's girlfriend and two friends have been quarantined. Other friends are being sought.
He works at Presbyterian-Columbia University Medical Center, but has not reported to the hospital or seen any patients since his return.

The bowling alley has been closed.
CDC says dry surfaces can retain viable Ebola for several hours. The CDC sent a response team to Dr. Spencer's apartment building and his apartment cordoned off.

Ron Klein is Obama's "Ebola czar."