The Department of Foreign Affairs is advising Irish people in America on short-term visas to make arrangements to come home.
Flights are continuing to operate to Dublin from New York, Chicago, Boston and San Francisco.
The Department says the virus is becoming more serious each day.
⚠️Travel Advisory for USA: In the USA the spread of #Covid19 virus is becoming more serious each day, putting the population at increasing risk. We are advising those on short term visas who risk losing employment, financial security & access to health care to return to Ireland. pic.twitter.com/LUs9wGxhrB— Irish Foreign Ministry (@dfatirl) March 27, 2020
America has over 82,000 confirmed cases of Covid-19.
Over 500 people have died from the virus in New York, the State's governor Andrew Cuomo has said.