An event in New York, planned as part Ireland's campaign for a seat on the United Nations Security Council, is expected to go ahead tomorrow without the Taoiseach.
Leo Varadkar was due to meet UN ambassadors and accompany them to a performance of Riverdance in the city.
However the Taoiseach has shortened his traditional St Patrick's visit to the US, allowing him to stay in Ireland to deal with the evolving coronavirus situation.
He will fly straight to Washington on Wednesday, and will not be visiting New York as previously planned.
All UN ambassadors have been invited to a 25th anniversary performance of Riverdance at New York's Radio City Music Hall.
It is not the first time that Ireland has used cultural events as part of its campaign for a seat on the UN Security Council.
In July 2018, UN ambassadors were invited to a U2 concert in New York's Madison Square Garden.
The government is hoping to secure a two-year rotating term on the UN Security Council in 2021 with voting due to take place in June.
Ireland is competing against Canada and Norway for a seat on the council.