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.