Around one-quarter of all deaths so far have been in the USA and a recent surge in cases have been reported in a handful of southern and western states that reopened earlier and more aggressively.
New coronavirus cases have been swiftly rising in more than half of U.S. states and experts are anxious.
The United States has by far the highest number of confirmed cases globally, with more than 2.5 million, and 125,803 deaths.
The most affected countries are the US, Brazil, Russia and India, standing at more than 2.5 million, 1.3 million, 600,000 and 500,000 cases respectively.
In the last 24 hours, 30,476 new cases were reported, bringing the national count to 1,344,143, the Brazilian Health Ministry said in its daily report. The United States accounts for about a quarter of all deaths.
The pandemic has caused mass unemployment in many countries, as lockdowns kept people in their homes and froze economic activity.
Chile on Sunday reported a total of 271,982 infections, and a death toll of 5,509.
Africa's confirmed COVID-19 cases continued to rise to a new high of more than 371,000, including 9,484 deaths.
Cases have also kept mounting on the African continent. Sunday's total cases were decreased by 16% from that day.
One million new cases were recorded in only six days, just as countries start to unwind lockdowns that have devastated their economies and thrown millions out of work.
The number of daily cases fell by 7.6% on Sunday compared to Saturday.
"It was mentioned that presently eight states - Maharashtra, Delhi, Gujarat, Tamil Nadu, Telangana, Uttar Pradesh, Andhra Pradesh and West Bengal - contribute 85.5 percent active case load and 87 percent total deaths in India", said a Health Ministry statement on the briefing it gave to the Group of Ministers (GoM) on the Covid-19 situation in the country.
Till now, the number of active cases stands at 4,187,277.