Ireland cancels major St. Patrick’s Day parades. Will Boston, New York be next?

March 9, 2020, 4:43 PM UTC

Dublin, Ireland will not host its usual St. Patrick’s Day parade this year as concerns about the spread of the COVID-19 coronavirus continue to weigh on people’s minds.

The move comes on the heels of a similar announcement by officials in Cork, which hosts the country’s second largest gathering.

Last year, an estimated 2 million people attended St. Patrick’s celebrations in the country. This year, the Republic of Ireland has already diagnosed 21 cases of COVID-19 and officials worry the count could go higher, especially during high-profile events like the parades.

Two of the biggest parades in the U.S., however, are still moving forward as planned. Boston and New York still plan to host their events, despite confirmed cases of coronavirus in both cities. Officials in Boston say they are “carefully monitoring” developments.

As on Monday midday, 28 people were confirmed infected in Massachusetts, though only one is in Boston. And 16 people in New York City are confirmed to have the virus.

Both of the two U.S. events draw huge crowds. Last year, more than 1 million people attended the Boston parade. The New York parade drew roughly 2 million spectators.

And people are starting to ask why the cities haven’t followed Ireland’s lead.

Both parades are set to take place this Sunday.

More must-read stories from Fortune:

Testing for coronavirus should be free, but it’s not always that simple
Coronavirus symptoms: The progression from moderate to severe can occur ‘very, very quickly’
Coronavirus is mutating: Chinese scientists find second strain
Coronavirus is giving China cover to expand its surveillance. What happens next?
—The coronavirus is officially claiming its first corporate casualties
Why the U.S. is so far behind other countries in coronavirus testing
Travel insurance is booming, even though it doesn’t help flight changes and cancellations

Subscribe to Fortune’s Outbreak newsletter for a daily roundup of stories on the coronavirus outbreak and its impact on global business.