Formula 1 and the FIA have confirmed that eight cases of Covid-19 were detected in the latest round of testing on championship personnel.
Between last Friday (October 9) and Thursday 1,506 tests were carried out on drivers, teams and personnel, with the time frame including three days of the Eifel Grand Prix weekend.
Under the Covid-19 code of conduct outlined by governing body FIA all Formula 1 personnel labelled as Profile 1 Attendees must carry out a test for the virus every five days.
Those who return a positive test are immediately isolated while those in their sub-bubble are also quarantined subject to a negative test or further instructions.
Formula 1 teams are operating in bubbles, and sub-bubbles, in order to reduce the risk of the virus.
Masks are mandatory within the paddock while social distancing is enforced where possible.
Cases of Covid-19 have spiked in recent weeks in Western Europe, where the majority of Formula 1 personnel are based, with tighter measures set to be introduced in several regions of the United Kingdom on Saturday.
Formula 1 has an elite sports exemption that clears personnel from some restrictions.