Three players tested positive for the virus following stringent real-time polymerase chain reaction (PCR) testing procedures on arrival at the team base.
Team management immediately put the squad into self-isolation as a precaution until specialist medical advice is sought from the Castle Lager Lions Series Medical Advisory Group (MAG).
A decision on further team activities will be made shortly.
SA Rugby Director of Rugby Rassie Erasmus emphasised that the team had followed all the necessary precautions since the start of the three-week conditioning camp hosted in Bloemfontein, which included mandatory COVID-19 testing three times a week, and that they would be led by specialist advice before any action is taken.