F1 drivers and team personnel are only allowed in the paddock once they have returned a negative test, with the sport's testing regime having returned just two positive results so far. Neither is said to have been related to drivers.
Perez has already undergone a second test and is now awaiting the results.
Perez currently sits sixth in the F1 drivers' championship, having finished sixth, sixth and seventh in his three races so far.
After two races in Austria and one in Hungary, the next two engagements for the F1 calendar are both at Silverstone.