In October, Sinn Féin confirmed that she was self-isolating due to her relative testing positive.
It was the second time in 10 days the deputy first minister underwent a test for the virus, having been tested the week prior after developing symptoms.
However, she tested negative and it was understood that she developed a head cold.
Separately, the party has come under fire for its members attending funerals in breach of Covid-19 restrictions.
Last Monday, three councillors attended the large funeral of a Provisional IRA man and party activist Eamonn ‘Peggy’ McCourt.
The party said that they paid their respects from the roadside of the republican funeral in Derry and they observed social distancing.