An employee of the Federal State Center for Special Risk Rescue Operations of Russia Emergency Situations disinfects a hall of Leningradsky railway station in Moscow, Russia, Thursday, June 24, 2021. Coronavirus infections continue to soar in Russia, with the highest reported new cases and further deaths since late January. (AP Photo/Pavel Golovkin)

People wearing face masks stand along a street in Madrid, Spain, Thursday, June 24, 2021. Spain is easing its COVID-19 pandemic rules, permitting people to stop wearing masks outdoors and allowing sports fans back into stadiums. Almost a year after face masks became mandatory indoors and outdoors, people from Saturday will no longer be required to wear them outside as long as they can stay at least 1.5 meters (5 feet) apart. (AP Photo/Manu Fernandez)

People wait for medical treatment outside an emergency ward amid a surge of COVID-19 patients at Cengkareng Regional General Hospital in Jakarta, Indonesia, Thursday, June 24, 2021. The world's fourth most populous country, has seen COVID-19 infections surge in recent weeks, putting pressure on hospitals, including in the capital city, where most of hospital beds are full, and has added urgency to the government's plan to inoculate 1 million people each day by next month. (AP Photo/Tatan Syuflana)

FILE - In this Oct. 2, 2020, file photo, a man sits on Waikiki Beach in Honolulu. Honolulu is loosening some restrictions on social activity now that more than half its population has been vaccinated against COVID-19. The new rules allow outdoor social gatherings of up to 25 people and indoor gatherings of up to 10.(AP Photo/Caleb Jones, File)

FILE - In this Feb. 1, 2021 file photo, an officer stands in front of a sign advising of vaccine appointments at a drive-up vaccination center at City College of San Francisco during the coronavirus pandemic in San Francisco. San Francisco city workers will be required to be vaccinated against the coronavirus when a vaccine receives full federal approval. The policy covering 35,000 municipal workers may be the first by any city or county in the U.S., the San Francisco Chronicle reported Wednesday, June 23, 2021. (AP Photo/Jeff Chiu,File)

Indian vendors wearing face masks as a precaution against coronavirus wait for customers at a vegetable market in Hyderabad, India, Thursday, June 24, 2021. (AP Photo/Mahesh Kumar A.)

FILE In this file photo dated Tuesday, Jan. 26, 2021, people in the arrivals area at Heathrow Airport in London, during England's coronavirus lockdown. The return of international travel is key to economic recovery across Europe, particularly for countries that rely more heavily on tourism, according to figures released Thursday June 24, 2021, from the World Travel and Tourism Council.(AP Photo/Matt Dunham, FILE)

People wearing protective masks to help curb the spread of the coronavirus walk along a pedestrian crossing Thursday, June 24, 2021, in Tokyo. (AP Photo/Eugene Hoshiko)

New South Wales Premier Gladys Berejiklian prepares to address a press conference in Sydney, Thursday, June 24, 2021. Berejiklian says Sydney is going through one the "scariest" times of the pandemic as a cluster of the highly-contagious Delta variant continues to spread. (Dean Lewins/AAP Image via AP)