The seven-time Formula One world champion wrapped up his record-equalling seventh title in Turkey last month and picked up his 11th win of the season in Bahrain on Sunday.
Seven-time Formula One world champion Lewis Hamilton has tested positive for Covid-19 and will miss Sunday's Sakhir Grand Prix in Bahrain, the first time he has had to sit out a race in his F1 career.
The Briton, Formula One's most successful driver of all time with a record 95 race wins and 98 pole positions, was isolating with mild symptoms but otherwise fit and well, his Mercedes team said in a statement on Tuesday.
Hamilton wrapped up his record-equalling seventh title in Turkey last month and picked up his 11th win of the season in Bahrain on Sunday. Mercedes have already won the constructors' title for an unprecedented seventh year in a row.
By missing Sakhir, the penultimate race on the calendar, Hamilton will not be able to match the record for the most wins in a single season.
Michael Schumacher and Sebastian Vettel share that mark with 13, Schumacher from 18 races in 2004 and Vettel from 19 in 2013.
"Lewis was tested three times last week and returned a negative result each time, the last of which was on Sunday afternoon at the Bahrain International Circuit ...," said Mercedes.
"However, he woke up on Monday morning with mild symptoms and was informed at the same time that a contact prior to arrival in Bahrain had subsequently tested positive.
"Lewis therefore took a further test and returned a positive result. This has since been confirmed by a retest."
Hamilton, 35, was also on a record run of 48 successive points finishes and has started 265 races in a row since his debut with McLaren in 2007.
The season will end with the Abu Dhabi Grand Prix at the Yas Marina track on Dec 13. It is unclear whether Hamilton will take part.
Mercedes said they would announce a replacement driver for the Sakhir race in due course.
Belgian Stoffel Vandoorne, who races for the Mercedes Formula E team and had been scheduled to fly to Bahrain even before Hamilton's positive result, and Mexican Esteban Gutierrez are the team's reserve drivers.
Briton George Russell, who races for Mercedes-powered Williams, is also on their books.
Mercedes team boss Toto Wolff said in October that every precaution was being taken to shield Hamilton and teammate Valtteri Bottas from the pandemic, with internal debriefs and engineering meetings taking place via video call.
"It's certainly not a great situation for them because you almost need to live like a hermit and that's what they are doing," he said then.
Hamilton has stayed in his motorhome at most circuits, with races confined to Europe before the final Middle Eastern triple-header, and returning to Monaco afterwards where physiotherapist Angela Cullen forms part of his protective "bubble."
He posted a video on Instagram on November 22, a week after winning the title, of himself playing tennis with father Anthony, however.
"When people ask me, how will you celebrate? We’ve got life to celebrate and spending time with family is how I am celebrating," he said in that post.
Covid-19 cases in F1
Formula One has seen a clutch of high-profile Covid-19 cases, with Red Bull sporting director Jonathan Wheatley testing positive last week.
Williams acting team principal Simon Roberts missed the Turkish Grand Prix after a positive test.
Racing Point have had both their drivers, Sergio Perez and Lance Stroll, as well as team owner Lawrence Stroll test positive.
Formula One started a shortened 17-race season in July after the Australian opener in March was cancelled when a McLaren employee tested positive.
The sport has strict rules in place to try to keep the novel coronavirus at bay. Personnel cannot access the paddock without a negative result and are tested every five days. Teams also do their own tests.