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.
The Northâs health department in its daily bulletin on Thursday recorded 13 more coronavirus deaths taking the Northern Ireland death toll to 1,792.
There were 592 new positive cases bringing the total number of cases in the North since the outbreak of the pandemic to 102,410.
In the past seven days there were 89 Covid-19 deaths which compares with 141 deaths in the previous week.
There was a slight decrease in the number of patients receiving coronavirus treatment in Northern Ireland hospitals. Seven days ago 786 were being treated, the figure now is 768. Hospital bed occupancy is at 92 per cent.
Intensive care units, however, remain busy. A week ago, 70 patients were receiving intensive care treatment for Covid, the figure now is 67. A week ago, 58 Covid-19 patients were on ventilators, now the figure has risen to 67.
Three Sinn Féin politicians were among the mourners at a large funeral of a Provisional IRA man and party activist, who died of Covid-19.
The latest controversy follows the furore over Mary Lou McDonald’s attendance at a massive Provo funeral in Belfast last year.
Potential breaches of Covid-19 regulations at the latest funeral in Derry are now being investigated. Sinn Féin says it was not involved in the organisation of the most recent Republican funeral on Monday.
The party said three councillors paid their respects from the roadside of the republican funeral in Derry and they observed social distancing.
DUP demands police answers after republican funeral scenes in Derry Eamon McCourt s funeral cortege was flanked by a family guard of honour . David Young, PA
Eamon Peggy McCourt died with Covid-19 on Saturday.
The DUP has called for police action after images emerged appearing to show a sizeable crowd at the funeral of a veteran republican in Derry.
Eamonn “Peggy” McCourt, from Creggan in Derry, died at the weekend having contracted Covid-19.
His funeral was held on Monday in the city.
Images later emerged of a seemingly large crowd following a hearse flanked by two lines of mourners in white shirts.
Eamonn “Peggy” McCourt, from Creggan in Derry, died at the weekend having contracted Covid-19.
His funeral was held on Monday in the city.
Images later emerged of a seemingly large crowd following a hearse flanked by two lines of mourners in white shirts.
Police monitored a funeral procession in Derry/Londonderry today in a sensitive manner to ensure compliance with the current health protection regulations
PSNI spokesman
Tight restrictions on the number of people who can attend funerals are currently in force as part of Covid-19 regulations.
Police said they monitored the procession and gave advice to some attendees on the regulations.