What happens when your child's mild respiratory illness suddenly worsens and you find yourself spending a week in the hospital for something that is usually mild and harmless? Find out all you need to know about pneumococcal disease, how mild it is for most people, how to recognize complications, and when to seek medical care. And what about the vaccine? Does this vaccine protect you from this disease, or are there some unintended consequences you should be aware of before you vaccinate?