The governor gave the update after chairing the Kaduna State Executive Council meeting on Wednesday.
While giving the update via his Twitter handle, El-Rufai warned against being misled about his coronavirus status.
He pledged to make his status public whenever he recovers from the virus.
He said, “Earlier Wednesday 10am-2pm, I took a few hours during isolation to chair a virtual meeting of the State Executive Council.
“I haven’t been cleared of COVID-19 yet and (I) will personally announce when confirmed negative. Ignore all fake news even if you like it.”
El-Rufai earlier announced that he tested positive for the virus on March 28.