The Ireland Women's and Under-20s Six Nations clashes with France this weekend have both been postponed due to the coronavirus, while Munster's Pro14 game against Benetton is also off.
There had been major doubts about the viability of the international fixtures after the men's game between the two countries in Paris was called off on Monday.
The French government had previously announced that all "confined" gatherings of more than 5,000 people were cancelled as a measure to stop the spread of the the disease.
It's now been confirmed that no Six Nations games will take place in France over the course of the weekend. Fresh dates for the matches have yet to be confirmed.
"Discussions with Unions and Federations are ongoing as it is of the utmost importance to find suitable dates for rescheduled matches while respecting the values and integrity of our Championship," a Six Nations statement read.
Ireland Women were due to play in Lille on Sunday while the Grand Slam-chasing Under-20s were fixed for a showdown at Stade Aime Giral in Perpignan on Friday night.
Meanwhile Munster's meeting with Benetton at Irish Independent Park on Friday on 27 March is also gone.
The Pro14 have confirmed that all Round 14 and 15 fixtures involving the Italian clubs Benetton and Zebre have now been postponed due to restrictions enforced by the Italian government that will prevent the teams from travelling.
Italians have been told to stay at home and avoid all non-essential travel as part of quarantine measures extended by the government to the whole country to stop the spread of the coronavirus.