U.S. first lady Jill Biden, wrapped in a blanket against the chill wind, listen to a live radio address with Navajo Nation President Jonathan Nez and his wife Phefelia Nez in the Window Rock Navajo Tribal Park & Veterans Memorial in Window Rock, Arizona, U.S., April 22, 2021. Mandel Ngan/Pool via REUTERS

U.S. first lady Jill Biden, wrapped in a blanket against the chill wind, listen to a live radio address with Navajo Nation President Jonathan Nez and his wife Phefelia Nez in the Window Rock Navajo Tribal Park & Veterans Memorial in Window Rock, Arizona, U.S., April 22, 2021. Mandel Ngan/Pool via REUTERS

U.S. first lady Jill Biden, wrapped in a blanket against the chill wind, listens as Navajo Nation President Jonathan Nez (not pictured) speaks during a live radio address at the Window Rock Navajo Tribal Park & Veterans Memorial in Window Rock, Arizona, U.S., April 22, 2021. Mandel Ngan/Pool via REUTERS

U.S. first lady Jill Biden, wrapped in a blanket against the chill wind, listens as Navajo Nation President Jonathan Nez (not pictured) speaks during a live radio address at the Window Rock Navajo Tribal Park & Veterans Memorial in Window Rock, Arizona, U.S., April 22, 2021. Mandel Ngan/Pool via REUTERS TPX IMAGES OF THE DAY

People sunbathe and chill in Playa de Palma beach in Palma de Mallorca, ahead of Easter celebrations, Spain, April 1, 2021. REUTERS/Enrique Calvo

People sunbathe and chill in Playa de Palma beach in Palma de Mallorca, ahead of Easter celebrations, Spain, April 1, 2021. REUTERS/Enrique Calvo

People sunbathe and chill in Playa de Palma beach in Palma de Mallorca, ahead of Easter celebrations, Spain, April 1, 2021. REUTERS/Enrique Calvo

People sunbathe and chill in Playa de Palma beach in Palma de Mallorca, ahead of Easter celebrations, Spain, April 1, 2021. REUTERS/Enrique Calvo

People sunbathe and chill in Playa de Palma beach in Palma de Mallorca, ahead of Easter celebrations, Spain, April 1, 2021. REUTERS/Enrique Calvo

People sunbathe and chill in Playa de Palma beach in Palma de Mallorca, during easter weeks many hotels and commerces in the Balearic islands are reopening after the pandemic restrictions to host the tourists arriving at the islands amid the coronavirus disease (COVID-19) outbreak, Spain, March 31, 2021. REUTERS/Enrique Calvo

People sunbathe and chill in Playa de Palma beach in Palma de Mallorca, during easter weeks many hotels and commerces in the Balearic islands are reopening after the pandemic restrictions to host the tourists arriving at the islands amid the coronavirus disease (COVID-19) outbreak, Spain, March 31, 2021. REUTERS/Enrique Calvo

People take a drink or chill in a terrace bar at Playa de Palma beach in Palma de Mallorca, a day before it becomes mandatory to wear a protective mask on the beach as a measure against the spread of the coronavirus disease (COVID-19), Spain, March 30, 2021. REUTERS/Enrique Calvo

Tourists chill and take drinks in terrace bars in Paguera beach in Calvia on the Spanish island of Mallorca following Berlin's lifted quarantine requirement for travellers returning from the Balearic Islands, amid the coronavirus disease (COVID-19) pandemic, Spain March 23, 2021. REUTERS/Enrique Calvo

Tourists chill and take drinks in terrace bars in Paguera beach in Calvia on the Spanish island of Mallorca following Berlin's lifted quarantine requirement for travellers returning from the Balearic Islands, amid the coronavirus disease (COVID-19) pandemic, Spain March 23, 2021. REUTERS/Enrique Calvo

Tourists chill and take drinks in terrace bars in Paguera beach in Calvia on the Spanish island of Mallorca following Berlin's lifted quarantine requirement for travellers returning from the Balearic Islands, amid the coronavirus disease (COVID-19) pandemic, Spain March 23, 2021. REUTERS/Enrique Calvo

Tourists chill and take drinks in terrace bars in Paguera beach in Calvia on the Spanish island of Mallorca following Berlin's lifted quarantine requirement for travellers returning from the Balearic Islands, amid the coronavirus disease (COVID-19) pandemic, Spain March 23, 2021. REUTERS/Enrique Calvo

Tourists chill and take drinks in terrace bars in Paguera beach in Calvia on the Spanish island of Mallorca following Berlin's lifted quarantine requirement for travellers returning from the Balearic Islands, amid the coronavirus disease (COVID-19) pandemic, Spain March 23, 2021. REUTERS/Enrique Calvo

A woman chills next to the sea in El Arenal beach in Palma de Mallorca following Berlin's lifted quarantine requirement for travelers returning from the Balearic Islands, amid the coronavirus disease (COVID-19) pandemic, Spain March 21, 2021. REUTERS/Enrique Calvo

A man and a member of staff are seen at a rental station at the indoor ski slope "Chill Factore", amid the outbreak of the coronavirus disease (COVID-19), in Manchester, Britain August 17, 2020. REUTERS/Molly Darlington

A woman picks up rental skis and boots at the indoor ski slope "Chill Factore", amid the outbreak of the coronavirus disease (COVID-19), in Manchester, Britain August 17, 2020. REUTERS/Molly Darlington

A member of staff wearing a protective face shield collects skis at the indoor ski slope "Chill Factore", amid the outbreak of the coronavirus disease (COVID-19), in Manchester, Britain August 17, 2020. REUTERS/Molly Darlington

A member of staff collects snowboards at the indoor ski slope "Chill Factore", amid the outbreak of the coronavirus disease (COVID-19), in Manchester, Britain August 17, 2020. REUTERS/Molly Darlington

A hand sanitiser is seen at a measuring station at the indoor ski slope "Chill Factore", amid the outbreak of the coronavirus disease (COVID-19), in Manchester, Britain August 17, 2020. REUTERS/Molly Darlington

A person wearing a protective mask skis at the indoor ski slope "Chill Factore", amid the outbreak of the coronavirus disease (COVID-19), in Manchester, Britain August 17, 2020. REUTERS/Molly Darlington

A person snowboards at the indoor ski slope "Chill Factore", amid the outbreak of the coronavirus disease (COVID-19), in Manchester, Britain August 17, 2020. REUTERS/Molly Darlington

A person wearing a protective mask skis at the indoor ski slope "Chill Factore", amid the outbreak of the coronavirus disease (COVID-19), in Manchester, Britain August 17, 2020. REUTERS/Molly Darlington

Members of the public wearing protective masks are seen at the indoor ski slope "Chill Factore", amid the outbreak of the coronavirus disease (COVID-19), in Manchester, Britain August 17, 2020. REUTERS/Molly Darlington

A member of staff sanitises boots at the indoor ski slope "Chill Factore", amid the outbreak of the coronavirus disease (COVID-19), in Manchester, Britain August 17, 2020. REUTERS/Molly Darlington

A psychologist talks to a member of the medical personnel in the chill-out area of the CHU de Liege hospital, amid the coronavirus disease (COVID-19) outbreak, in Liege, Belgium May 6, 2020. REUTERS/Yves Herman

A psychologist talks to a member of the medical personnel in the chill-out area of the CHU de Liege hospital, amid the coronavirus disease (COVID-19) outbreak, in Liege, Belgium May 6, 2020. REUTERS/Yves Herman

A physiotherapist massages a member of the medical personnel in the chill-out area of the CHU de Liege hospital, amid the coronavirus disease (COVID-19) outbreak, in Liege, Belgium May 6, 2020. REUTERS/Yves Herman

A psychologist talks to a member of the medical personnel in the chill-out area of the CHU de Liege hospital, amid the coronavirus disease (COVID-19) outbreak, in Liege, Belgium May 6, 2020. REUTERS/Yves Herman

A physiotherapist massages a member of the medical personnel in the chill-out area of the CHU de Liege hospital, amid the coronavirus disease (COVID-19) outbreak, in Liege, Belgium May 6, 2020. REUTERS/Yves Herman

A physiotherapist massages a member of the medical personnel in the chill-out area of the CHU de Liege hospital, amid the coronavirus disease (COVID-19) outbreak, in Liege, Belgium May 6, 2020. REUTERS/Yves Herman

A physiotherapist massages a member of the medical personnel in the chill-out area of the CHU de Liege hospital, amid the coronavirus disease (COVID-19) outbreak, in Liege, Belgium May 6, 2020. REUTERS/Yves Herman

Fresh french fries are seen at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the coronavirus disease (COVID-19) outbreak, in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

Fresh french fries are seen at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the coronavirus disease (COVID-19) outbreak, in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

Fresh french fries are seen at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the coronavirus disease (COVID-19) outbreak, in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

Fresh french fries are seen at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the coronavirus disease (COVID-19) outbreak, in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

Fresh french fries are seen at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the coronavirus disease (COVID-19) outbreak, in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

A worker with a protective mask looks at a bag of fresh french fries at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the coronavirus disease (COVID-19) outbreak, in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

Potatoes are seen at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the coronavirus disease (COVID-19) outbreak, in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

Potatoes are seen at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the coronavirus disease (COVID-19) outbreak, in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

Potatoes are seen at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the coronavirus disease (COVID-19) outbreak, in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

Fresh french fries are seen at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the coronavirus disease (COVID-19) outbreak, in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

Potatoes are seen at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the coronavirus disease (COVID-19) outbreak, in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

A worker with a protective face mask checks a machine at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the outbreak of the coronavirus disease (COVID-19) in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

A worker with a protective face mask checks a machine at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the outbreak of the coronavirus disease (COVID-19) in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

A worker with a protective face mask checks a machine at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the outbreak of the coronavirus disease (COVID-19) in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

A worker with a protective face mask checks a machine at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the outbreak of the coronavirus disease (COVID-19) in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

Workers with protective face masks check machines at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the outbreak of the coronavirus disease (COVID-19) in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

Workers with protective face masks check machines at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the outbreak of the coronavirus disease (COVID-19) in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

A worker with a protective face mask checks a machine at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the outbreak of the coronavirus disease (COVID-19) in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

A worker with a protective face mask checks a machine at Mydibel Group factory, a manufacturer of chilled, frozen and dehydrated potato products, amid the outbreak of the coronavirus disease (COVID-19) in Mouscron, Belgium April 29, 2020. REUTERS/Yves Herman

An U.S. flag flutters in the wind in a residential neighborhood in Livonia, Michigan, U.S. amid an outbreak of coronavirus disease (COVID-19) on April 17, 2020. REUTERS/Emily Elconin

Snow falls in a nearly empty parking lot as the spread of the coronavirus disease (COVID-19) continues, at a hotel in West Vail, Colorado, U.S., April 12, 2020. REUTERS/Shannon Stapleton

An empty highway A 20 is seen, as the spread of the coronavirus disease (COVID-19) continues, near Kreuz Uckermark, Germany, March 30, 2020. REUTERS/Annegret Hilse

A cross stands in La Rinconada, the Andes, Peru, October 7, 2019. REUTERS/Nacho Doce