You can get it from a tick bite, it can take you months to find out you have it and, if you don't catch it early, it can cause serious health problems.
On The Early Show Friday, Dr. Brian Fallon, director of the new Lyme Disease Research Center at Columbia University Medical Center, hit the high points of things you need to know about it.
For a wide variety of lyme disease resources pointed to by Fallon's program, click here.
For more on lyme disease from the National Institutes of Health, click here.
To see Fallon's appearance on The Early Show,