A little girl holding her newborn sister waits for their turn in a queue during a vaccination campaign under the supervision of the Syrian Arab Red Crescent (SARC) humanitarian nonprofit organization, in the besieged Syrian town of Douma, Syria, 23 May 2017. According to a statement from SARC, in the city of Douma some 12,809 children under the age of five were immunized in a vaccination campaign to prevent measles and poliomyelitis. The campaign was the first of its kind with the participation of 100 volunteers. SARC has been delivering vaccines to 17 health centers approved for vaccination campaigns in towns and villages in the Eastern Ghouta area. (Photo by Mohammed Badra/EPA)

A snail (Helix Aspersa) and a baby snail sit on a leave in a farm in Vienna June 12, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. (Photo by Leonhard Foeger/Reuters)

Fighters of the Free Syrian Army fire an anti-aircraft weapon in the rebel-held Mashhad area in southeastern Aleppo, on December 12, 2016, as they battle Syrian government forces during an operation to retake the embattled city. The crucial battle for Aleppo entered its “final phase” after Syrian rebels retreated into a small pocket of their former bastion in the face of new army advances. The retreat leaves opposition fighters confined to just a handful of neighbourhoods in southeast Aleppo, the largest of them Sukkari and Mashhad. (Photo by AFP Photo/Stringer)

Nursing and care personnel lay on the floor in the ICU unit, during a demonstration on International Nursing and Care day, at the Mont Legia Hospital in Liege, Belgium, Wednesday, May 12, 2021. Hospital personnel around Belgium took part in various actions around the country on Wednesday to highlight the work they do and demand better recognition. (Photo by Valentin Bianchi/AP Photo)

A villager offers prayer to a dead body of an elephant, which is killed by lightning at atop of Bamuni hill in Assam's Nagaon district, on May 14, 2021. 18 wild elephants were found dead atop Bamuni Hills in Assam's Nagaon district today after lightning struck them during the showers in the area on May 12, 2021. At least 18 elephants are suspected to have been killed by lightning in northeastern India, officials said on May 13 as they launched a probe into the incident. (Photo by Biju Boro/AFP Photo)

Ali al-Naami, convicted of murdering his three daughters, is placed on a carpet to be executed at a public square in Sana'a, Yemen, 16 June 2021. Defendant Ali al-Naami, 40, convicted of killing his daughters Rahaf, 7, Raghad, 12, and Malak, 14, in June 2019, was executed by an executioner in front of hundreds of spectators in a public square in Sana'a. He had admitted to strangling them and drowning them in a water tank after the mother left the house due to domestic disputes with him. (Photo by Yahya Arhab/EPA/EFE)

Kaye Don seated in the cockpit of his new racing car the “Silver Bullet” at Wolverhampton, England on February 21, 1930, in which he will attempt to beat world land speed record at Daytona. It has two 12-cylinder V shaped engines and each develops 2,000-h.p. The theoretical speed of the car is 275 m.p.h. but the designer estimated that will be able to reach 250 m.p.h. allowing for wind pressures. (Photo by AP Photo/Staff/Puttnam)

This handout picture taken and released by Thai Royal Household Bureau on December 12, 2019 shows Thailand's Princess Bajrakitiyabha (L) and Princess Sirivannavari sit in their barge during the Royal Barge procession in Bangkok. The Royal barge procession is the final event of the coronation of Thailand’s King Maha Vajiralongkorn. (Photo by Thai Royal Household Bureau via AFP Photo/Handout)