Tournament organisers said that a new date for the match, which was due to take place at the Stade de France on Sunday, would be announced "in due course" after having previously announced on Wednesday that it would go ahead.
"The Six Nations testing oversight group met today to review the situation in the French camp. They unanimously recommended the postponement of the France v Scotland match," the Six Nations said.
The French Rugby Federation (FFR) did not name the latest player to contract the virus, but they were already without star scrum-half Antoine Dupont, captain Charles Ollivon and coach Fabien Galthie who contracted the virus following their 14 February win over Ireland in Dublin.
France's training had been cancelled this Thursday and the entire French group placed in isolation just three days before the fixture's original date.
Apart from Ollivon and Dupont, France will also be without backs Arthur Vincent, Gabin Villiere and Brice Dulin as well as the entire front row of Cyril Baille, Julien Marchand and Mohamed Haouas.
The Round 3 Guinness Six Nations clash between France and Scotland has been postponed from its original date of Sunday, February 28th.#GuinnessSixNations https://t.co/t8pCGIdHK6
— Guinness Six Nations (@SixNationsRugby) February 25, 2021
'Difficult to know'
Scotland were eager to play the game as scheduled, with a postponement to next week potentially seeing 10 away players miss out due to their commitments with non-Scottish clubs.
"We made our case quite clear to the Six Nations about why we wanted the game played this Sunday and we look forward to a great contest," said Scottish Rugby Union chief executive Mark Dodson on Wednesday.
On Wednesday, French sports minister Roxana Maracineanu also demanded FFR president Bernard Laporte launch an investigation into the outbreak.
The minister asked health officials to examine "how the chain of contaminations was formed" within the squad.
"It's always difficult to know the origin... I would love to know, to tell you the truth," said Laporte to France info on Thursday morning.
"This is something that concerns me and I would like to know really if anyone is to blame or not, quite simply."
Les Bleus, bidding to win the Six Nations title for the first time since 2010, are sitting top of the table after beating Italy and Ireland in their opening two games.
