Noble's Hospital has restricted the use of Christmas trees and decorations.
Tinsel and lights are included in this because they, along with trees, cannot be 'properly decontaminated', according to Manx Care.
A spokesperson said: 'This action is to protect people from the risk of infections such as Strep A, influenza, norovirus, Covid-19, clostridium difficile and many other organisms that can compromise your safety and your care.'