Hull City have two positive coronavirus tests among their players and staff.
Every Championship club conducted tests to determine the spread of the virus.
A total of 1014 tests were done by 24 Championship clubs.
Hull confirmed both individuals do not have any symptoms, and they would be self isolating for the coming seven days.
A club statement read: "Hull City can confirm that two people have tested positive for COVID-19 following the first round of testing at the training ground.
"Medical confidentiality means the names will not be disclosed, and the Club asks for this to be respected."
An EFL statement read: "The EFL will continue to make regular and relevant announcements as appropriate in respect of the testing programme to support competition integrity and transparency."