Ivan Gómez Flores, 34, and Adriano Abascal Gurría, 28, both owners of the company “Prospective Vision” use a DJI Agras MG-1P drone to spray disinfectant over La Ermita de Santa Isabel Park in Mérida, Yucatán, Mexico on April 9, 2020. Since April 4, 2020, Mérida’s City Council in coordination with the company “Prospective Vision” have been spraying Dutri Health, a sodium chlorite disinfectant, daily over the city’s markets, parks and other public spaces to help slow the spread of COVID-19. Mérida is one of the first Yucatecan municipalities to initiate actions of this type. The World Health Organization (WHO) declared the outbreak to be a Public Health Emergency of International Concern on 30 January 2020 and recognised it as a pandemic on 11 March 2020. (Photo by Bénédicte Desrus)