Science is a complicated process and it's especially confusing in terms of COVID-19 and the ever-changing regulations in regards to masks and what scientists are learning. In this podcast we go through the scientific process starting with generating hypotheses all the way to data analysis and communicating your science. We also try to explain the scientific process in regards to COVID-19 and shed some light on why regulations change so quickly! 
SOURCES: 
Different recommendations of masks article: https://www.npr.org/sections/goatsandsoda/2020/04/10/829890635/why-there-so-many-different-guidelines-for-face-masks-for-the-public
WHO masks: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/advice-for-public/when-and-how-to-use-masks
WHO vs CDC masks: https://abcnews.go.com/Health/cdc-offer-conflicting-advice-masks-expert-tells-us/story?id=70958380
Updated WHO mask policy: https://www.bbc.com/news/health-52945210