Chief of Staff, Mr. Abba Kyari tested positive for COVID-19 on Monday.
He returned exactly one week later on Saturday, March 14th, but did not show any symptoms.
He was said to have been at a meeting on containing the COVID-19 pandemic in Nigeria all through Sunday, where he reportedly started to cough.
According to presidential sources, the test for the president was necessitated after his contact with Abba Kyari.
The president, however, tested negative.