A tombstone is seen in Eyam, as the spread of the coronavirus disease (COVID-19) continues. Eyam has become known as the 'plague village' as in 1665 during the Great Plague the villagers isolated themselves from the wider community to stop the spread of the disease, Eyam, Britain, April 13, 2020. REUTERS/Carl Recine 

The skeleton of a dead goat lies in the veld on a farm near drought-stricken Graaff-Reinet, South Africa, November 16, 2019. Picture taken November 16 2019. REUTERS/Mike Hutchings 

A skull is pictured as participants parade through the town during the annual Bonfire Night festivities in Lewes, Britain, November 5, 2019. REUTERS/Toby Melville 

A damaged model human skeleton is seen in the aftermath of Hurricane Dorian on the Great Abaco island town of Marsh Harbour, Bahamas, September 3, 2019. Picture taken September 3, 2019. REUTERS/Dante Carrer 

A damaged model human skeleton is seen in the aftermath of Hurricane Dorian on the Great Abaco island town of Marsh Harbour, Bahamas, September 3, 2019. Picture taken September 3, 2019.REUTERS/Dante Carrer 

A skull of a Dassenach warrior who was, according to a Turkana warrior, killed when he tried to ambush Turkana cattle herders is seen in Ilemi Triangle, Kenya March 26, 2019. Picture taken on March 26, 2019. REUTERS/Goran Tomasevic TPX IMAGES OF THE DAY 

Bones are seen in the desert in Pima County, Arizona, U.S., September 8, 2018. REUTERS/Lucy Nicholson 

Skulls are seen during the Day of Skulls celebrations in La Paz, Bolivia, November 7, 2018. Picture taken November 7, 2018. REUTERS/David Mercado 

Skulls are seen during the Day of Skulls celebrations in La Paz, Bolivia, November 7, 2018. Picture taken November 7, 2018. REUTERS/David Mercado 

A decorated skull is seen during the Day of Skulls celebrations in La Paz, Bolivia, November 8, 2018. REUTERS/David Mercado 

A decorated skull is seen during the Day of Skulls celebrations in La Paz, Bolivia, November 8, 2018. REUTERS/David Mercado 

Skulls are seen during the Day of Skulls celebrations in La Paz, Bolivia, November 7, 2018.Picture taken November 7, 2018. REUTERS/David Mercado 

Art installations of skeletons are seen at a theatre where artists assembled an altar ahead of the Day of the Dead, at Zocalo Square in Mexico City, Mexico October 31, 2018. REUTERS/Henry Romero 

A man wears a mask as he takes part in a Catrina event ahead of the Day of the Dead, at Zocalo Square in Mexico City, Mexico October 31, 2018. REUTERS/Henry Romero 

A man wears a mask as he takes part in a Catrina event ahead of the Day of the Dead, at Zocalo Square in Mexico City, Mexico October 31, 2018. REUTERS/Henry Romero 

A man wears a mask as he takes part in a Catrina event ahead of the Day of the Dead, at Zocalo Square in Mexico City, Mexico October 31, 2018. REUTERS/Henry Romero 

A fake skeleton is seen on a tree for a Halloween event at Happy Valley park in Beijing, China, October 31, 2018. REUTERS/Jason Lee 

A sign of a minefield is seen in Zeleni Jadar near Srebrenica, Bosnia and Herzegovina, September 28, 2018. REUTERS/Dado Ruvic SEARCH "BOSNIA DISPLACED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A destroyed structure is seen in the town of Malakal, in the Upper Nile state of South Sudan, September 9, 2018. REUTERS/Baz Ratner SEARCH "MALAKAL BAZ" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A man participates in "Bolas de Fuego" (Balls of Fire) festival in Nejapa, El Salvador August 31, 2018. Revellers participate in "La Recuerda" to remember the fight of Saint Geronimo against the devil with balls of fire. REUTERS/Jose Cabezas 

ATTENTION EDITORS - VISUAL COVERAGE OF SCENES OF INJURY OR DEATH A human skull is seen in a paper bag as part of the skeletal remains found during a search for clandestine graves by members of the state police and the state prosecutor's office in the municipality of Guadalupe, in the Juarez Valley, Mexico August 18, 2018. REUTERS/Jose Luis Gonzalez 

The self-made helmet of motorbike enthusiast Nico Knappe from Berlin sits on the tank of his bike at an airport racing event in Bottrop-Kirchhellen, western Germany, August 5, 2018. REUTERS/Wolfgang Rattay 

Human remains and pottery from the Inca culture are seen inside a tomb at Huaca de las Abejas, in Tucume Archaeological Complex in Lambayeque, Peru July 4, 2018. REUTERS/Guadalupe Pardo 

Development and construction continues on a large scale housing project of over 600 homes in Oceanside, California, U.S., June 25, 2018. REUTERS/Mike Blake 

People climb the Sydney Harbour Bridge at sunset, in Sydney, Australia, May 25, 2018. REUTERS/David Gray 

Ox bones which are used to make the triggers of crossbows are seen at a workshop in Liuku township of Nujiang Lisu Autonomous Prefecture in Yunnan province, China, March 27, 2018. REUTERS/Aly Song SEARCH "SONG CROSSBOW" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

People set fire to an effigy during the traditional burning of Judas on Holy Saturday at la Merced neighborhood in Mexico City, Mexico, March 31, 2018. REUTERS/Henry Romero 

People set fire to an effigy during the traditional burning of Judas on Holy Saturday at la Merced neighborhood in Mexico City, Mexico, March 31, 2018. REUTERS/Henry Romero 

People set fire to an effigy during the traditional burning of Judas on Holy Saturday at la Merced neighborhood in Mexico City, Mexico, March 31, 2018. REUTERS/Henry Romero 

Skulls are seen inside the recently discovered burial site in Minya, Egypt February 24, 2018. REUTERS/Mohamed Abd El Ghany 

A deceased animal's skull inside the recently discovered burial site in Minya, Egypt February 24, 2018. REUTERS/Mohamed Abd El Ghany 

Skulls are seen inside the recently discovered burial site in Minya, Egypt February 24, 2018. REUTERS/Mohamed Abd El Ghany 

Farmers from the southern state of Tamil Nadu display skulls which they claim are the remains of Tamil farmers who have committed suicide, during a protest demanding good rates for their crops and crop insurance scheme from the government, in New Delhi, India, September 13, 2017. REUTERS/Cathal McNaughton TPX IMAGES OF THE DAY 

Nuria Maqueda, a member of the Association for the Recovery of Historical Memory (ARMH), takes part in the exhumation of the grave in which they believe may be the remains of Timoteo Mendieta, who was shot in 1939 by forces of dictator Francisco Franco in Guadalajara's cemetery, Spain, May 16, 2017. REUTERS/Juan Medina 

Pedestrians cross the Millenium Bridge in central London, Britain April 17, 2017. REUTERS/Stefan Wermuth TPX IMAGES OF THE DAY 

Dolls, which were placed by a visitor, lie at beds at a kindergarten in the abandoned city of Pripyat near the Chernobyl nuclear power plant in Ukraine, April 5, 2017. REUTERS/Gleb Garanich TPX IMAGES OF THE DAY 

The remains of a mammoth (Mammuthus Columbi) are pictured in Tultepec, on the outskirts of Mexico City, March 13, 2017. REUTERS/Carlos Jasso 

Restorers carry the jaw of a mammoth (Mammuthus Columbi) in Tultepec, on the outskirts of Mexico City, March 13, 2017. REUTERS/Carlos Jasso 

The remains of a mammoth (Mammuthus Columbi) are pictured in Tultepec, on the outskirts of Mexico City, March 13, 2017. REUTERS/Carlos Jasso 

The remains of a mammoth (Mammuthus Columbi) are pictured in Tultepec, on the outskirts of Mexico City, March 13, 2017. REUTERS/Carlos Jasso 

Damaged seats are pictured amidst rubble of buildings in the northern Syrian town of al-Bab, Syria February 28, 2017. REUTERS/Khalil Ashawi TPX IMAGES OF THE DAY 

Skulls of cattle are seen in Coremas, Paraiba state, Brazil, February 11, 2017. REUTERS / Ueslei Marcelino SEARCH "BRAZIL DROUGHT" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A demonstrator holds up a skull mask during a rally organized by workers of Belgian public health, social and cultural sectors in central Brussels, November 24, 2016. REUTERS/Yves Herman 

A woman takes a photo of a fake skeleton ahead of a Halloween parade at Happy Valley park in Beijing, China October 31, 2016. REUTERS/Jason Lee 

A robot of the Siasun Robot and Automation Corporation simulates the use of a medical instrument on a model of a human skeleton at the WRC 2016 World Robot Conference in Beijing, China, October 21, 2016. REUTERS/Thomas Peter TPX IMAGES OF THE DAY

A skull is above the ground at a cemetery after Hurricane Matthew hit Jeremie, Haiti, October 18, 2016. REUTERS/Carlos Garcia Rawlins 

A human skull is seen at a cemetery after Hurricane Matthew hit Jeremie, Haiti, October 17, 2016. REUTERS/Carlos Garcia Rawlins 

A human skull is seen inside one of the three mass graves that contain in total the remains of around 200 bodies believed to have been killed by Spain's late dictator Francisco Franco's forces during the civil war, at El Carmen's cemetery in Valladolid, Spain, August 10, 2016. REUTERS/Juan Medina SEARCH "MEDINA GRAVES" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY 

Skulls are seen at the witch doctor kiosk during the day of offerings to the "Pachamama" (Mother Earth) in El Alto, Bolivia, August 1, 2016. REUTERS/David Mercado TPX IMAGES OF THE DAY

French labour union employee holds a figure of a skeleton with the slogan "the labour law killed me" during a demonstration in protest of the government's proposed labour law reforms in Nantes, France, June 2, 2016. REUTERS/Stephane Mahe

Hindu devotees carry human skulls during the annual Shiva Gajan religious festival at Kurmun village, in West Bengal, India, April 12, 2016. REUTERS/Rupak De Chowdhuri 

TPX THIS PIC PLEASE Hindu devotees carry human skulls during the annual Shiva Gajan religious festival at Kurmun village, in West Bengal, India, April 12, 2016.REUTERS/Rupak De Chowdhuri 

Hindu devotees carry human skulls during the annual Shiva Gajan religious festival at Kurmun village, in West Bengal, India, April 12, 2016. REUTERS/Rupak De Chowdhuri TPX IMAGES OF THE DAY

A figure of a skeleton is seen painted in a hallway of the house built underground by Manuel Barrantes in San Isidro de Perez Zeledon, Costa Rica, March 14, 2016. Barrantes started digging through red soil and volcanic rock on his farm 12 years ago to build his subterranean house, between 15 and 63 feet (4.57 and 19.2m) underground. The dwelling, which Barrantes says provides a peaceful and comfortable home for him and his family away from noise pollution and the effects of climate change, now covers about 2,000 square feet (185.8 square metres). Picture taken March 14, 2016. REUTERS/Juan Carlos Ulate 

Two human skulls are seen in the grave at Guadalajara's cemetery, Spain, January 23, 2016. At the request of an Argentine judge in a lawsuit seeking redress for crimes committed during the 1936-39 civil war and the four-decade dictatorship of General Francisco Franco that followed, a Guadalajara court has authorised the exhumation of the grave, containing 22 bodies of people believed to have been killed by Franco's forces in the months after the end of the civil war. Picture taken January 23, 2016. REUTERS/Juan Medina 

A human skull is seen into the grave at Guadalajara's cemetery, Spain, January 28, 2016. At the request of an Argentine judge in a lawsuit seeking redress for crimes committed during the 1936-39 civil war and the four-decade dictatorship of General Francisco Franco that followed, a Guadalajara court has authorised the exhumation of the grave, containing 22 bodies of people believed to have been killed by Franco's forces in the months after the end of the civil war. Picture taken January 28, 2016. REUTERS/Juan Medina 

A human skull with a bullet hole is seen in the exhumation of the grave in Guadalajara's cemetery, Spain, January 26, 2016. At the request of an Argentine judge in a lawsuit seeking redress for crimes committed during the 1936-39 civil war and the four-decade dictatorship of General Francisco Franco that followed, a Guadalajara court has authorised the exhumation of the grave, containing 22 bodies of people believed to have been killed by Franco's forces in the months after the end of the civil war. Picture taken January 26, 2016. REUTERS/Juan Medina 

A member of the Association for the Recovery of Historical Memory (ARMH) takes part in the exhumation of the grave in Guadalajara's cemetery, Spain, January 29, 2016. At the request of an Argentine judge in a lawsuit seeking redress for crimes committed during the 1936-39 civil war and the four-decade dictatorship of General Francisco Franco that followed, a Guadalajara court has authorised the exhumation of the grave, containing 22 bodies of people believed to have been killed by Franco's forces in the months after the end of the civil war. Picture taken January 29, 2016. REUTERS/Juan Medina 

A member of the Association for the Recovery of Historical Memory (ARMH) takes part in the exhumation of the grave in Guadalajara's cemetery, Spain, January 27, 2016.At the request of an Argentine judge in a lawsuit seeking redress for crimes committed during the 1936-39 civil war and the four-decade dictatorship of General Francisco Franco that followed, a Guadalajara court has authorised the exhumation of the grave, containing 22 bodies of people believed to have been killed by Franco's forces in the months after the end of the civil war. Picture taken January 27, 2016. REUTERS/Juan Medina 

A member of the Association for the Recovery of Historical Memory (ARMH) wraps a skull in newspaper as he takes part in the exhumation of the grave in Guadalajara's cemetery, Spain, January 23, 2016.At the request of an Argentine judge in a lawsuit seeking redress for crimes committed during the 1936-39 civil war and the four-decade dictatorship of General Francisco Franco that followed, a Guadalajara court has authorised the exhumation of the grave, containing 22 bodies of people believed to have been killed by Franco's forces in the months after the end of the civil war. Picture taken January 23, 2016. REUTERS/Juan Medina