It's unusual for public health authorities to have to face two different flu viruses at the same time, and this has caused a lot of confusion for those interested in getting vaccines.
The first virus in circulation, the one that closed the school district earlier this month, is a unique H1N1 virus known as the "swine flu." This strain of the virus is 'unique' because it is not genetically similar to any influenza that humans have experienced before. Unique viruses caused pandemics in the last century that killed 10's of millions of people. Many have downplayed the danger of the current virus strain, but significantly, child deaths due to the virus have already reached the toll the annual flu takes in an entire year.
The second virus the community faces is the seasonal or annual flu. As of last Friday, there have been no cases of seasonal flu detected in Kentucky, but the annual flu season doesn't typically start until late October and lasts through the spring. If you or your child were down with the flu in the last few weeks, it was most likely the unique H1N1 and not the seasonal flu. Since the genetic make up of the two viruses is so dissimilar, you will need to get two different vaccines to protect yourself and that has been the source of much confusion.