The World Health Organization said on Tuesday it was seeing a "very large acceleration" in coronavirus infections in the United States which had the potential of becoming the new epicentre.
Harris said that in the past 24 hours, 85% of all new reported coronavirus cases had been in the United States and Europe, with 40% of these just in the US. "So it does have that potential", Harris said when asked if the USA could become the epicenter of the pandemic.
"A lot of countries are now taking very strong measures to distance people, to really quarantine entire societies, and these have been shown to be an important way of slowing down this spread of the virus and buying some time", Harris said.
"The coronavirus outbreak represents a significant exterior shock to the macro outlook, akin to a large-scale pure catastrophe", analysts at BlackRock Funding Institute stated.
Almost 384,000 people worldwide have been infected and more than 16,500 have died from the virus, according to by Johns Hopkins University.
However, she identified some positive signs such as more comprehensive testing, and further efforts to isolate the sick and trace their immediate contacts exposed to the virus.
Over the earlier 24 hours, 85 p.c of recent instances had been in Europe and the U.S., and of these, 40 p.c had been in the US.
President Donald Trump acknowledged the problem.
Some US states and cities, including NY and Los Angeles, have introduced emergency quarantine measures in a bid to stop the spread of the disease.
NY is the worst affected state according to known cases, with more than 20,000 of the confirmed infections in America coming in the region.
Mr. Cuomo told reporters that the apex is higher than was expected.
Given Harris's figure, the USA would have had about 16,360 new cases.
Japanese Prime Minister Shinzo Abe said the Games would be held by the summer of 2021 at the latest and that International Olympic Committee President Thomas Bach had agreed on such a postponement.
Britain on Tuesday began curbs on movement without precedent in peacetime after PM Boris Johnson ordered everyone to stay at home.
The streets of the capital had been eerily quiet as all however important outlets closed and other people exclusively went to work if it was unavoidable.
The move toward lockdowns has been influenced by the success of such measures in China, where the virus was first found late a year ago in the central city of Wuhan.
The provincial capital Wuhan, which has been in total lockdown since January 23, will see its travel restrictions lifted on April 8.
Nonetheless, the danger from overseas infections seems to be on the rise, prompting more durable screening and quarantine measures in main cities such because the capital Beijing.