The number of people confirmed to have the coronavirus in Russia has exceeded 200,000, data posted on an official website set up by health authorities showed on Sunday.

The number of coronavirus cases worldwide topped four million as some of the hardest-hit countries readied Sunday to lift lockdown restrictions, despite concerns about a second wave of infections.

Top infectious diseases expert Anthony Fauci is among three members of the White House's coronavirus task force who will self-isolate after potential exposure to the pathogen, U.S. media reported.

South Korea's capital has ordered the closure of all clubs and bars after a burst of new cases sparked fears of a second coronavirus wave, and President Moon Jae-in urged the public to remain vigilant.

Iran warned Saturday that coronavirus infections were rising in the southwest despite falls in other regions, as it announced more than 1,500 new confirmed cases.

The flight from Italy was one of the last arrivals that day at the Stockholm airport. A Swedish couple in their 50s walked up and loaded their skis into Razzak Khalaf's taxi.

It was early March and concerns over the coronavirus were already present, but the couple, both coughing for the entire 45-minute journey, assured Khalaf they were healthy and just suffering from a change in the weather. Four days later, the Iraqi immigrant got seriously ill with COVID-19.

The US vice president's spokeswoman became the second White House staffer this week to test positive for the coronavirus, officials said Friday, even as President Donald Trump continued to go mask-free at a World War II commemoration with veterans in their 90s.

Researchers in Hong Kong have found that patients suffering milder illness caused by the new coronavirus recover more quickly if they are treated with a three-drug antiviral cocktail soon after symptoms appear.  

Brazil, the country in Latin America that has been hardest hit by the coronavirus crisis, said Friday it had reached a new daily record for COVID-19 fatalities with 751 deaths.

The announcement by the health ministry puts Brazil's total death count at nearly 10,000. 

The United States recorded 1,635 coronavirus deaths in the past 24 hours, bringing the total to 77,178, according to the latest real-time tally Friday reported by Johns Hopkins University.