The current COVID-19 pandemic has major implications on the examination of the respiratory tract. Due to the high viral load, there are concerns regarding potential aerosol generation during upper respiratory procedures such as nasoendoscopy and swab testing.1Various safety recommendations have been proposed for such procedures.2,3
High-speed video with laser light illumination has been used to study respiratory particle dispersal patterns during coughing and sneezing.4 Here, we used a similar technique to assess respiratory droplet generation and dispersal during nasoendoscopy and swab testing.