Keeping your instrument clean will help keep you healthy. Woodwind players should swab out their instrument every time they play. Brass players should give their instrument a bath every month. (Woodwinds can NOT be given a bath.)
Here's what might happen if you don't clean your instrument regularly:
'Saxophone Lung' Developed By Man Who Didn't Clean His Clarinet For More Than 30 Years
http://www.huffingtonpost.com/2013/11/08/saxophone-lung-clean-clarinet-instrument-woodwind_n_4221368.html?utm_hp_ref=fb&src=sp&comm_ref=false
Here's what might happen if you don't clean your instrument regularly:
'Saxophone Lung' Developed By Man Who Didn't Clean His Clarinet For More Than 30 Years
http://www.huffingtonpost.com/2013/11/08/saxophone-lung-clean-clarinet-instrument-woodwind_n_4221368.html?utm_hp_ref=fb&src=sp&comm_ref=false