A woman is pictured in the municipality of Iztapalapa as the outbreak of the coronavirus continues in Mexico City on May 27, 2020. (Photo by Carlos Jasso/Reuters)

A girl swings on a rope swing over the Volga River in Zavolzhsk, Ivanovo Region, Russia on June 9, 2020. (Photo by Vladimir Smirnov/TASS)

Women pose for a selfie in a lavender field at Hitchin Lavender farm in Ickleford, Britain, August 4, 2020. (Photo by Peter Cziborra/Reuters)

A person walks their dog in the morning mist at sunrise in Greenwich Park in south London on November 9, 2020. (Photo by Daniel Leal-Olivas/AFP Photo)

An Iraqi boy sits next to cats for sale at the Ghazl Market in central Baghdad on November 20, 2020. (Photo by Ahmad Al-Rubaye/AFP Photo)

A couple walk in the Retiro park in Madrid on November 17, 2020 as a thick fog falls on the Spanish capital. (Photo by Gabriel Bouys/AFP Photo)

People enjoying the hot weather on Brighton beach in Sussex, England on August 7, 2020. (Photo by Stephen Lock/i-Images)

French twins Thomas and Vincent (L) Seris take the tram in Bordeaux, November 12, 2014. Born with Xeroderma Pigmentosum (XP), the twins cannot be exposed to the sun and its ultraviolet (UV) light, which could provoke precocious cancers due to an autosomal recessive genetic disorder of DNA repair. Colloquially referred to as Children of the Night (Les Enfants de la Lune) the Seris twins are among 70 to 80 people in France who suffer from the genetic defect. The French association “Les Enfants de la Lune” reports that there are between five and ten thousand such cases in the world. Thomas and Vincent have been testing a new protective mask for the last year which is transparent and ventilated and developed by several hospitals in France. (Photo by Regis Duvignau/Reuters)