A medical worker in protective gear checks the paperwork of people getting the Sinovac COVID-19 vaccine during a mass vaccination in Depok on the outskirts of Jakarta, Indonesia, Friday, June 25, 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/Dita Alangkara)

A restaurant employee, right, checks a visitor's COVID-19 vaccination QR code at the entrance of a restaurant in Moscow, Russia, Tuesday, June 22, 2021. As proof of vaccination for entering a restaurant, customers must visit a government website and get a QR code, a digital pattern designed to be read by a scanner. (AP Photo/Pavel Golovkin)

In this photo released by the official website of the Office of the Iranian Supreme Leader, Supreme Leader Ayatollah Ali Khamenei receives a shot of the Coviran Barekat COVID-19 vaccine in Tehran, Iran, Friday, June 25, 2021. (Office of the Iranian Supreme Leader via AP)

A woman sings for people who have just been inoculated with the Cuban Abdala COVID-19 vaccine as they wait in the observation area in Havana, Cuba, Wednesday, June 23, 2021. (AP Photo/Ramon Espinosa)

Grandchildren of Alejandro Navas, who died from complications related to COVID-19, stand together after spreading his cremated remains on a hill in the El Pajonal de Cogua Natural Reserve, north of Bogota, Colombia, Thursday, June 24, 2021. As Colombia suffers a critical moment of the pandemic, some families are bringing the cremated remains of their loved ones to the reserve where trees are planted along with the ashes in their honor. (AP Photo/Ivan Valencia)

A health worker administers the Covishield vaccine during a special vaccination drive against COVID-19 in Hyderabad, India, Friday, June 25, 2021. (AP Photo/Mahesh Kumar A.)

Members of the Economic Freedom Fighters stage a protest march in Pretoria, South Africa, Friday June 25, 2021, demanding that vaccines from China and Russia be included in the country's vaccine rollout program. South Africa's third wave of COVID-19 infections is overwhelming the health system in Gauteng, the country's most populous province that is now running out of beds to treat patients. (AP Photo Let Pretorius)

A nurse enters a COVID-19 unit at the Honorio Delgado Hospital in Arequipa, Peru, Friday, June 25, 2021. Due to increased cases of COVID-19 and the Delta variant of the disease, the city is under a strict lockdown for 15 days beginning June 21. (AP Photo/Guadalupe Pardo)