Wishaw native and Celtic star David Turnbull was among the stars to test positive for the virus, with Motherwell duo Allan Campbell and Barry Maguire forced to self-isolate after returning from international duty.
Turnbull, Aberdeen's Ross McCrorie and brother Robby, on loan at Livingston from Rangers, all tested positive and their clubs were informed on Friday.
Steelmen boss Stephen Robinson and Hoops gaffer Neil Lennon were amongst those to criticise the governing body after their key players returned from the trip to Greece.
Robinson, who stated the club found out that the players to withdraw just four hours before kick-off against St Johnstone, blasted the communication with clubs from the national set-up.An SFA statement on the spread.