France had their Six Nations plans disrupted by a positive COVID-19 test that sent the squad into self-isolation on Tuesday.
The French Rugby Federation (FFR) also said head coach Fabien Galthie would be retested amid concerns he may have coronavirus.
It was another figure from within the France camp, who was not named, that returned a positive result following testing on Monday.
Announcing that news, the FFR said on Tuesday: "Following the PCR tests carried out last night in Marcoussis with the France XV, all the players tested negative, a member of the technical staff tested positive, as well as a suspicious and unproven case concerning Fabien Galthie who will be tested again this morning.
"In accordance with health protocol, all members of the team and management were isolated this morning. Interactions are kept to a minimum.
"An additional test at the National Rugby Centre will be carried out on Wednesday morning for the entire squad."
The squad are due to disperse later this week to be allowed a short time at home between matches, with France, who have won their opening two games, not in action again until they face Scotland on February 28 in Paris.
They scored a fine 15-13 win over Ireland in Dublin on Sunday to follow up the opening 50-10 victory over Italy.
En ce jour de Saint-Valentin, j’espère que notre équipe de France a réussi à faire battre les coeurs des amoureux de rugby. Merci à nos supporters, vous nous donnez de la force.— Fabien Galthié (@FGalthie) February 14, 2021
Une pensée aux clubs amateurs qui ne peuvent pas jouer. Nous jouons aussi pour vous pic.twitter.com/IKZjKocpeU
The FFR statement added: "Tests will be carried out at home on Friday, as well as on Sunday evening at the National Rugby Centre when the squad reunites.
"The announcement of the 31 players for the Scotland match will take place this Wednesday evening, February 17."