A presidential source confirmed the development to The Nation.
According to the report, a Presidential source, who sought anonymity, confirmed that all persons suspected to have been exposed to the Chief of Staff to the President have been advised to self-isolate.
He added that the advice might have been responsible for the staying away of many staff from office on Tuesday.
Meanwhile, the Presidential Task Force for the control of coronavirus, COVID-19, led by its Chairman, Boss Mustapha, on Tuesday, visited the State House, Abuja, amid speculation of suspected case of the virus.
It was gathered that the Presidential Task Force, which arrived the Villa at about 2.18p.m., inspected some offices including that of the Chief of Staff.
Mr Mustapha and other members of the task force comprising ministers and health experts, spent about 15 minutes inspecting the offices.
When contacted for comment on their mission to villa, the task force declined comments, saying Nigerians should await their usual press briefing.