It is necessary to remove the dirt and pathogenic bacteria, to avoid contaminating germ free or sanitizing articles and 答：除去手上的污垢及污染的致病菌，避免污染无菌物品或清洁物品，避免感染和交叉感染。
These outbreaks can be prevented by quarantining newly-arrived puppies and sanitizing the facility with a 1:20 dilution 但是这种发病通常可以通过新进动物的检疫和消毒进行很好的防治，如家用漂白粉1/20稀释消毒。