Performance Evaluation of the DualDur In Vitro Diagnostic System in the Diagnosis of Lyme Borreliosis

I. Positive trial arm I.1. Inclusion Criteria: * Man or female subjects over 18 years of age * Treatment-naive or treatment-experienced subjects with Lyme borreliosis, whose physician indicates drug therapy for Lyme borreliosis. * Subjects capable of reading, understanding, and observing the requirements of the clinical trial, who sign the Patient Information Leaflet and Informed Consent Form approved by the Competent Authority and the Ethics Committee. I. 2. Exclusion Criteria: * Man or female subjects over 80 years of age * Pregnancy, breastfeeding * History of any complication related to previous blood sampling * Coagulation and/or bleeding disorders * Anticoagulant therapy * Acute, life-threatening condition * Participation in another clinical trial * The patient is under antibiotic therapy, or received such treatment in the preceding 3 months * The patient is currently taking or has taken in the preceding 6 months dietary supplements of herbal origin, or medicinal herbs as first-line or add-on treatments for Lyme borreliosis * In the event the patient has previously been treated for Lyme borreliosis, then this treatment took place less than 6 months before blood sampling. * In the preceding 6 months, the patient used an electronic device operating along the principle of electromagnetic (i.e. electric or magnetic) fields - such as bioresonance, pulsed magnetic field, etc. - as add-on treatment for Lyme borreliosis. II. Negative trial arm II.1. Inclusion Criteria: * Man or female subjects over 18 years of age * Asymptomatic healthy volunteer subjects without acute or chronic symptoms of Lyme borreliosis, who are free of Lyme borreliosis by the indication of all standard laboratory tests, and who are willing to take part in a comprehensive medical examination and related blood sampling. * Subjects capable of reading, understanding, and observing the requirements of the trial, who sign the Patient Information Leaflet and Informed Consent Form approved by the Competent Authority and the Ethics Committee. II. 2. Exclusion Criteria: * Man or female subjects over 80 years of age * Pregnancy, breastfeeding * History of any complication related to previous blood sampling * Coagulation and/or bleeding disorders * Anticoagulant therapy * Participation in another clinical trial * Lyme borreliosis diagnosed previously, at any time during the life of the subject * The subject has received any treatment for Lyme borreliosis (medicinal products, dietary supplements, medicinal plants, electronic devices, etc.) during his/her life * The patient is under antibiotic therapy, or received such treatment in the preceding 3 months * The occupation of the subject is either a forester or a hunter