Influenza Virus Aerosols in Human Exhaled Breath: Particle Size, Culturability, and Effect of Surgical Masks
Study from 2013: Surgical masks worn by patients reduce aerosols shedding of influenza virus.
Study from 2009 showing both N95 and surgical masks reduced spread of influenza.: A Quantitative Assessment of the Efficacy of Surgical and N95 Masks to Filter Influenza Virus in Patients with Acute Influenza Infection
Pediatric COVID-19 Cases in Counties With and Without School Mask Requirements — United States, July 1–September 4, 2021
Face masks effectively limit the probability of SARS-CoV-2 transmission