CHICAGO – Illinois Gov. JB Pritzker and his Chicago office staff will be working from home after a senior staff member in the governor's office tested positive for the new coronavirus, Pritzker's office announced Monday.


Pritzker was tested Sunday, and the results were negative, according to the governor's office. The rest of the governor's staff who have been reporting to the office also tested negative, the office said.


The governor's office says about 20 staff members have been working from the James R. Thompson Center, following Illinois Department of Public Health guidelines and social distancing measures. The rest of the office staff already was working from home.


Among those who now will be working from home is Illinois Department of Public Health Director Dr. Ngozi Ezike, who is leading the state's response to COVID-19, Pritzker spokeswoman Jordan Abudayyeh said.


The staff member who tested positive late last week, was not showing symptoms and had been in close contact with the governor and other staff.


Pritzker will continue to hold weekday news briefings from his home.


The office at the James R. Thompson Center in the Loop is undergoing a deep cleaning, and the governor and his staff will return once they are cleared to do so by the Department of Public Health.


In April, another member of Pritzker's Chicago office staff tested positive for the coronavirus.The employee started to feel unwell on March 26 and immediately went home, Pritzker said at the time.


Pritzker and Ezike said at an April 7 news briefing that they hand't been tested for COVID-19 because they hadn't exhibited symptoms.


Pritzker did not have "regular, close contact" with the staffer who became ill in late March.