Youth council member Mia Buckles plays with 18-month-old Kobe Buckles-Benson as Canada's Prime Minister Justin Trudeau visits the Cowessess First Nation, where a search had found 751 unmarked graves from the former Marieval Indian Residential School near Grayson, Saskatchewan, Canada on July 6, 2021. (Photo by Shannon VanRaes/Reuters)

Reflected in the rearview mirror, Jose Collantes gets a hug from daughter Kehity while they're stopped at a red light, as Jose drives his five-year-old home from a playdate in Santiago, Chile, Sunday, September 6, 2020, three months after they lost his wife, her mother, to COVID-19. Their case highlights how COVID-19 deaths the world over are often the beginning of a new personal journey for those affected. (Photo by Esteban Felix/AP Photo)

Seven-year-old Mimi Meade winces from the sting as Dr. Richard Mulvaney inoculates her April 26, 1954 in McClean, Va., with the new Salk polio vaccine. Mrs. John Lucas, a registered nurse, holds Mimi's arm steady as she gets one of the first injections of the countrywide test. (Photo by Harvey Georges/AP Photo)

In this Tuesday January 21, 2014, file photo, slaughtered chickens are displayed for sale at a wholesale poultry market in Shanghai. The Chinese government on Tuesday, June 1, 2021, says a 41-year-old man has contracted what might be the w0orld’s first human case of the H10N3 strain of bird flu, but the risk of large-scale spread is low. (Photo by AP Photo/File)

A three-day-old Bengal tiger calf is cared for after being fed at the National Zoo in Masaya on August 30, 2021. A female Bengal tiger calf was born in the National Zoo of Nicaragua, the fourth of this species in risk of extinction born in captivity in the country, and is under special care due to a limited breastfeeding capacity of the mother. (Photo by Inti Ocon/AFP Photo)

Afghan dogs fight during the weekly dog fight in Kabul, Afghanistan, 17 February 2017. Under the Taliban dog fighting was forbidden, but since their fall it has become a major source of entertainment for hundreds of Afghans, where bets can amount to thousands of dollars and the dogs, which must be over one year old, are well-cared for by their owners and fed milk, butter and meat. (Photo by Hedayatullah Amid/EPA)

A former Gurkha (special forces soldier), Nirmal Purja, takes a selfie at the start of his attempt to scale the world’s 14 highest peaks in seven months to break a 31-year-old record. Nirmal Purja, known as Nims, aims to smash the current record – which stands at seven years, 11 months and 14 days – set by Polish climber Jerzy Kukuczka. On the way, he also plans to defeat at least seven speed world records on mountains over 8,000m high. (Photo by Nirmal Purja/PA Wire Press Association)

A motor taxi driver gets his hands washed at an Ebola screening station on the road between Butembo and Goma on July 16, 2019 in Goma. The first patient to be diagnosed with Ebola in the eastern DR Congo city of Goma has died, the governor of North Kivu province said on July 16, 2019. The case – the first in a major urban hub in the region's nearly year-old epidemic of the disease – has sparked deep concern in neighbouring Rwanda and at the UN. (Photo by John Wessels/AFP Photo)