Thanks for your question. Yes, I think if we understand how bacteria move through mucus, for example, we can find strategies to stop them doing this. For example, your stomach is also covered with a thin layer of mucus which protects it. But some bacteria find strategies to swim through this layer, and attack the stomach which can lead to serious illness. When we understand why they can swim through such a slimy liquid, we may find medicine which stops them to swim and attack the stomach.