On Monday, Cedric Frolick, the National Assembly chairperson responsible for committees, oversight and information and communications technology, also tested positive for Covid-19.
Frolick is self-isolating, according to speaker Thandi Modise.
National Council of Provinces chairperson Amos Masondo wished Frolick a speedy recovery.
Three provincial premiers have also contracted the coronavirus.
North West premier Job Mokgoro went into “voluntary quarantine” at a hospital two weeks ago. His spokesperson Vuyisile Ngesi told TimesLIVE it was precautionary "because he stays at an official residence and has a lot of people who work there". He has since recovered.
Also a fortnight ago, Gauteng premier David Makhura and the Western Cape's Alan Winde went into self-quarantine.
Earlier this month, ANC treasurer-general Paul Mashatile went into self-quarantine as a precautionary measure after a member of staff tested positive for Covid-19. It came a day after his wife, Manzi Ellen, died from a long illness, and shortly after he lost his mother, Marriam Nomvula Mashatile, who died peacefully in her sleep at the age of 82.