The Brazilian president Jair Bolsonaro has again tested positive for COVID-19, CNN reported.

Bolsonaro, who spoke to a CNN Brasil reporter on the phone, has been working in semi-isolation from the presidential residence since July 7.

"He initially said he had a low-grade fever, but he didn’t come down with any serious symptoms. A long-time proponent of the controversial malaria drug hydroxychloroquine, Bolsonaro announced he was taking it and has repeatedly said he believes the drug has helped him," CNN noted.