The World Health Organization is seeing exceptional transmission of the coronavirus in moderately not many nations, its boss, Tedros Adhanom Ghebreyesus, said on Thursday.

"We keep on observing exceptional transmission in a moderately little gathering of nations," he told virtual instructions in Geneva. "66% of all cases are from 10 nations. Practically 50% of all cases revealed so far are from only three nations."

U.S. coronavirus cases surpassed 4 million on Thursday, with more than 2,600 new cases each hour, all things considered, the most elevated rate on the planet, as per a Reuters count.

Diseases in the United States have quickly quickened since the main case was distinguished on Jan. 21. It took the nation 98 days to arrive at 1 million cases. It took an additional 43 days to arrive at 2 million and afterward 27 days to arrive at 3 million.

It has just taken 16 days to arrive at 4 million at a pace of 43 new cases a moment.

Tedros additionally said that since cases might be at a low level where somebody lives, it doesn't mean they should let down their watchman.

"Know your situation - do you know how many cases were reported where you live yesterday? Do you know how to find that information? Do you know how to minimize your exposure?"