The World Health Organization (WHO) said children aged 12 and over should wear masks to help tackle the COVID-19 pandemic under the same conditions as adults, while children between six and 11 should wear them on a risk-based approach. Children aged 12 and over should particularly wear a mask when a one-metre distance from others cannot be guaranteed and there is widespread transmission in the area, the WHO and the United Nations Children’s Fund (UNICEF) said in a document on the WHO website dated Aug. 21. Whether children between six and 11 should wear masks depends on a number of factors, including the intensity of transmission in the area, the child’s ability to use the mask, access to masks and adequate adult supervision, the two organisations said. The potential impact on learning and psycho-social development, and the interactions the child has with people at high risk of developing serious illness, should also play a role.