If you've ever had the flu, you know it's not your average virus. The illness can land you flat on your back and its effects can span 2 weeks or longer. For kids under 2, seniors, and people with chronic health conditions like asthma , heart disease or diabetes , the flu can be especially severe or even fatal. Dehydration, worsening of health conditions, and pneumonia are all possibilities. And, NO, the flu vaccine CANNOT cause the flu (just in case you are trying to use this excuse in a last ditch effort). The vaccine is made up of inactivated (killed) or weakened viruses that have no ability to infect the lungs. So, go on - you're out of excuses - fight off the flu monster today and go get your vaccine.