A member of the military assigned to F.E. Warren Air Force Base has tested positive for the coronavirus, the base announced.
The base, in a news release, said the military member had just returned from outside of Wyoming.
The individual self-quarantined and did not go on base after returning to Wyoming, the release said.
It was unclear whether the individual was among the four people tested positive for the illness in Cheyenne or whether this was a new case.
Base Commander Col. Peter Bonetti said the implementing proactive measures to prevent the spread of the virus.