Unfortunately, the evidence is not recognised medically. In my case, I did do several blood tests during the course of the disease, just after the tick bite and then up to a year later, with the appearance of IGG and IGM (or the opposite, I do not know). My doctor to me has diagnosed Lyme immediately, and the infectiologist of the CHU Liège also. By contrast, the doctor of the mutual do not recognize such evidence and told me that the blood test does not mean that I am sick, but that simply, I had, one day, a contact with the Lyme bacteria, which is shocking. My family doctor, in addition to be based on the analyses of blood, is based also on the presence of symptoms in his patient, according to the list of dr. Horowitz.