A friend took me to a chess competition – all very quiet and studious, but a couple of discreet sneezes, so I thought I would look to see what was online, and in a few minutes found these :
Simon Williams sneezes twice, violently, on screen at 4.40
https://www.youtube.com/watch?v=bPZyRvOg5XA
3.30 chess champion sneezes on screen in middle of interview
https://www.youtube.com/watch?v=1gc_Btas6ls
There must be others.