A man wearing a protective mask and clothing as patients infected with coronavirus are stretchered into a military A400M aircraft during a transfer operation from Colmar airport to Toulouse, as the spread of the coronavirus disease (COVID-19) continues, Colmar, France, April 5, 2020. REUTERS/Christian Hartmann

An old cross and clothes belongings to 'Hidden Christians', who preserved their faith in secret during centuries of persecution, are displayed at Hirado City Ikitsuki Museum on Ikitsuki Island, Nagasaki Prefecture, Japan, November 4, 2019. REUTERS/Issei Kato SEARCH "HIDDEN CHRISTIANS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Nuns of the Ukrainian Orthodox Church of the Moscow Patriarchate take part in a ceremony marking the 1031st anniversary of the Christianisation of the country, which was then known as 'Kievan Rus', in Kiev, Ukraine July 27, 2019. REUTERS/Gleb Garanich

A demonstrator takes part in a general strike against the government's pension plan and cuts to federal spending on higher education planned by Brazil's President Jair Bolsonaro's right-wing government in Sao Paulo, Brazil June 14, 2019. The sign reads: "Reform of pension plan." REUTERS/Nacho Doce

Priests attend a vigil led by Pope Francis ahead of Pentecost Sunday at the Vatican, June 8, 2019. Picture taken with zoom burst. REUTERS/Remo Casilli

A member of the Orthodox clergy takes part in the Christian Orthodox Holy Fire ceremony at the Church of the Holy Sepulchre in Jerusalem's Old City, April 27, 2019 REUTERS/Amir Cohen

A woman holds a rosary as silence is observed as a tribute to victims, two days after a string of suicide bomb attacks on churches and luxury hotels across the island on Easter Sunday, during a memorial service in Colombo April 23, 2019. REUTERS/Dinuka Liyanawatte

A decorated horse is seen during the traditional Georgi horse riding procession on Easter Monday in Traunstein, Germany April 22, 2019. REUTERS/Michael Dalder

A penitent carries a rosary during the procession of "La Soledad" brotherhood during Holy Week in Madrid, Spain, April 20, 2019. REUTERS/Susana Vera

Spanish Civil Guard officers and "costaleros" (penitents who carry floats bearing the statue of Christ or the Virgin) march during the procession of "La Soledad" brotherhood during Holy Week in Madrid, Spain, April 20, 2019. REUTERS/Susana Vera

People wearing masks march through the streets during Easter celebrations in Ceske Budejovice, Czech Republic, April 19, 2019. REUTERS/David W Cerny

A man wearing a mask prepares to march through the streets during Easter celebrations in Ceske Budejovice, Czech Republic, April 19, 2019. REUTERS/David W Cerny

Penitents attend the Procession of the Torches during Holy Week in Goias Velho, west of Brasilia, Brazil April 18, 2019. REUTERS/Adriano Machado TPX IMAGES OF THE DAY

A penitent attends the Procession of the Torches during Holy Week in Goias Velho, west of Brasilia, Brazil April 18, 2019. REUTERS/Adriano Machado

Penitents attend the Procession of the Torches during Holy Week in Goias Velho, west of Brasilia, Brazil April 18, 2019. REUTERS/Adriano Machado

Penitents attend the Procession of the Torches during Holy Week in Goias Velho, west of Brasilia, Brazil April 18, 2019. REUTERS/Adriano Machado

Penitents attend the Procession of the Torches during Holy Week in Goias Velho, west of Brasilia, Brazil April 18, 2019. REUTERS/Adriano Machado

Filipino penitents carry crosses as they perform a ritual on Maundy Thursday in Mabalacat City, Pampanga province, Philippines, April 18, 2019. REUTERS/Eloisa Lopez

Penitents of La Paz (The Peace) brotherhood take part in a procession during Holy Week in the Andalusian capital of Seville, Spain April 14, 2019. REUTERS/Marcelo del Pozo TPX IMAGES OF THE DAY

Penitents of La Paz (The Peace) brotherhood make their way to a church before taking part in a procession during Holy Week in the Andalusian capital of Seville, southern Spain April 14, 2019. REUTERS/Marcelo del Pozo

Penitents of La Paz (The Peace) brotherhood make their way to a church before taking part in a procession during Holy Week in the Andalusian capital of Seville, southern Spain April 14, 2019. REUTERS/Marcelo del Pozo TPX IMAGES OF THE DAY

People dressed as Father Frost, Snow Maiden and other characters take part in the congratulations of state farm workers in the village of Tarkachy, Belarus December 26, 2018. REUTERS/Vasily Fedosenko

Woman stands by during an annual "Christmas Run" in Mi'ilya, a Christian Arab village in northern Israel December 21, 2018. REUTERS/Ronen Zvulun

Women cheer during an annual "Christmas Run" in Mi'ilya, a Christian Arab village in northern Israel December 21, 2018. REUTERS/Ronen Zvulun

A boy wearing Santa Claus outfit watches a large fish tank at Sunshine Aquarium in Tokyo, Japan, December 18, 2018. REUTERS/Issei Kato

Participants dressed as Santa Claus take part in the annual race known as "Run Santa Run" at Fundidora Park in Monterrey, Mexico December 16, 2018. REUTERS/Daniel Becerril TPX IMAGES OF THE DAY

Participants dressed as Santa Claus take part in the annual race known as "Run Santa Run" at Fundidora Park in Monterrey, Mexico December 16, 2018. REUTERS/Daniel Becerril

Women cross-stitch during a Christmas workshop to teach embroidery and handicrafts in the northern Israeli city of Nazareth, December 6, 2018. Picture taken December 6, 2018. REUTERS/Ammar Awad

A statue of the Virgin Mary wears a yellow vest in a street in Nantes, France, December 10, 2018. REUTERS/Stephane Mahe TPX IMAGES OF THE DAY

A statue of the Virgin Mary wears a yellow vest in a street in Nantes, France, December 10, 2018. REUTERS/Stephane Mahe

Pre-bagged Christmas trees lie in forest at Wicklow Way Christmas tree farm in Roundwood, Ireland, December 9, 2018. REUTERS/Clodagh Kilcoyne

Christmas decoration items are displayed for sale at a shop in Hanoi, Vietnam, November 29, 2018. REUTERS/Kham

A man wears a tefillin as he prays before a visit to the gravesite of the late Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson at the Old Montefiore Cemetery in Queens, New York, U.S., November 2, 2018. REUTERS/Andrew Kelly

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

An art installations of a skeleton is 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 security guard looks towards the Spasskaya Tower of the Kremlin and St. Basil's Cathedral from a pedestrian bridge over the Moskva river at the Zaryadye Park in central Moscow, Russia September 18, 2018. REUTERS/Maxim Shemetov

Saturn and Mitra hats are seen in a religious shop in Rome, Italy, September 18, 2018. REUTERS/Alessandro Bianchi

Pope's hat, named Saturn, is seen in a religious shop in Rome, Italy, September 18, 2018. REUTERS/Alessandro Bianchi

Catholic nuns look at a jewellery window display in Madrid, Spain, September 17, 2018. REUTERS/Susana Vera

A displaced Christian woman who fled from her home in Mosul, washes clothes at Ankawa refugee camp in Erbil, Iraq September 11, 2018. Picture taken September 11, 2018. REUTERS/Azad Lashkari

A displaced Christian woman who fled from her home in Mosul, washes clothes at Ankawa refugee camp in Erbil, Iraq September 11, 2018. Picture taken September 11, 2018. REUTERS/Azad Lashkari

A nun from the order of Missionaries of Charity holds a rosary during the annual procession of Our Lady of Charity, the patron saint of Cuba, on the streets of downtown Havana, Cuba, September 8, 2018. REUTERS/Alexandre Meneghini

An Archbishop's hat is seen on a chair during mass at the Pastoral Congress at the World Meeting of Families in Dublin, Ireland August 22, 2018. REUTERS/Clodagh Kilcoyne

A statue of the Virgin of Urkupina is seen during a festival in La Paz, Bolivia, August 16, 2018. REUTERS/David Mercado

Catholic worshiper holds a rosary as she takes part in celebrations of the Assumption of Mary at Jasna Gora Monastery in Czestochowa, Poland August 15, 2018. REUTERS/Kacper Pempel TPX IMAGES OF THE DAY

Catholic worshiper holds a rosary as she takes part in celebrations of the Assumption of Mary at Jasna Gora Monastery in Czestochowa, Poland August 15, 2018. REUTERS/Kacper Pempel

Nuns look toward the north standing between binoculars near the demilitarized zone in Paju, South Korea, June 12, 2018. REUTERS/Kim Hong-Ji

Dyed eggs and food are placed on a grave, on Saint Thomas Sunday, when descendants of Greeks who emigrated from the Pontus commemorate their dead ancestors by sharing Easter meal on their graves in Athens, Greece April 15, 2018. REUTERS/Costas Baltas

Priests attend the Orthodox Easter service at the Christ the Saviour Cathedral in Moscow, Russia April 8, 2018. Alexander Zemlianichenko/Pool via REUTERS

Greek Orthodox Patriarch of Jerusalem Theophilos III performs the "Washing of the Feet" ceremony outside the Church of the Holy Sepulchre in Jerusalem's Old City April 5, 2018. REUTERS/Ammar Awad TPX IMAGES OF THE DAY

A harp that is held by an image of Saint Cecilia, patron of musicians, is pictured inside a showcase at Garibaldi square in Mexico City, Mexico April 4, 2018. REUTERS/Edgard Garrido

A believer prays at the government-sanctioned Catholic church during a mass on Palm Sunday in Youtong village, Hebei province, China, March 25, 2018. REUTERS/Damir Sagolj SEARCH "SAGOLJ CATHOLICS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A man stands next to a cross as an Argentine national flag with an image of the Falkland Islands, known to Argentines as 'Malvinas', is seen placed on La Barrosa hill ahead of the 36th anniversary of the 1982 war between Britain and Argentina over the Falklands in Balcarce, Argentina, April 1, 2018. The words on the flag read: "Thanks, heroes". REUTERS/Marcos Brindicci TPX IMAGES OF THE DAY

A man stands next to a cross as an Argentine national flag with an image of the Falkland Islands, known to Argentines as 'Malvinas', is seen placed on La Barrosa hill ahead of the 36th anniversary of the 1982 war between Britain and Argentina over the Falklands in Balcarce, Argentina, April 1, 2018. The words on the flag read: "Thanks, heroes". REUTERS/Marcos Brindicci

Worshippers with stains of goat's blood on their clothes participate in a ceremony during the celebrations of the voodoo rituals in Souvenance, Haiti, April 1, 2018. REUTERS/Andres Martinez Casares

A woman strokes a donkey before the procession of the "Virgem da Atalaia" during Holy Week in Alcochete, near Lisbon, Portugal April 1, 2018. REUTERS/Rafael Marchante

A donkey is prepared before the procession of the "Virgem da Atalaia" during Holy Week in Alcochete, near Lisbon, Portugal April 1, 2018. REUTERS/Rafael Marchante