This blog post would not have occurred to me had my husband's cousin not contracted Guillain-Barré syndrome from undercooked chicken. Guillain-Barré syndrome is a situation that arises when one's immune system attacks the nerves and causes paralysis that can last several weeks. Most people make a full recovery within a few weeks or months. However, some may take longer to recover and others may have permanent nerve damage.
Here is the full article on campylobacteriosis There are some precautions to be taken when handling raw chicken and if you're presented with undercooked chicken at a restaurant, send it back to be cooked properly. Choose rotisserie chickens that look more well-done to prevent parts of the chicken from being undercooked. Don't eat it if it looks pink or red. Juices should run clear as well.