Looks like they haven't changed their stance, so not sure what you are referring to: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/advice-for-

Looks like they haven't changed their stance, so not sure what you are referring to: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/advice-for-public/when-and-how-to-use-masks https://www.who.int/emergencies/diseases/novel-coronavirus-2...