White nose syndrome is a sickness that affects bats. It affects them by making it so they don't have enough energy to wake up during the winter and fly to get food. It is caused by a fungus that grows on their skin, especially around the nose, which is why it's called "white nose syndrome." The fungus gets into the bats when they hibernate, and it makes them so tired that they can't wake up and go find food. This means they starve and then die. Preventing white nose syndrome means finding ways to keep the fungus away from bats, like making sure there's no fungus in the caves (where bats often hibernate) and keeping people from touching bats or bringing things into the caves that could carry the fungus.