My late Aunt Chris caught polio as a child. This damaged her nervous system, and over the course of her life worsened progressively, a condition known as post-polio syndrome. In the end she suffered numerous health problems because of this. The nerves to her lungs were in the end unable to regulate fluid in her lungs. She then suffered from pneumonia as a result of this and, struggling for breath, died.
Thanks to science, polio is now a vaccine preventable disease. Polio vaccination is safe and effective. Please make sure you and your children are vaccinated against it.