The round-four clash between Ireland and Italy in Dublin, due to be played this weekend, was postponed last Wednesday in the interest of public health, but the match is due to be rearranged.
No further games have been cancelled after a Six Nations meeting in Paris.
England's final-weekend trip to Rome to face Italy is schedule to go ahead as planned, but the women's and Under-20 showdowns in Padua and Verona respectively may be relocated.
"The Six Nations met today in Paris to address the current situation regarding the Covid-19 Virus," a Six Nations statement read. "Six Nations and its six unions and federations are following the situation very closely with their respective governments and relevant health authorities and will strictly follow any directive given that would impact sporting events.
"As it stands today, based on the latest information, all Six Nations matches currently scheduled are set to go ahead.
"Six Nations is in contact with FIR and RFU regarding the possibility of relocating the Women's and U20 Italy vs England matches to another Italian location and we will make a further announcement on this in due course.
"However, the Italy vs England Senior Men's match in Rome is planned to go ahead as scheduled.
"Six Nations intends to complete all 15 games across all three championships when time allows but we will refrain from making any rescheduling announcements for the time being while we keep assessing the situation."