puukide vahendusel leviv haigus, mida põhjustab spiroheetide perekonda kuuluv bakter ning mille esmaseks tunnuseks on ringikujuline nahalööve puugihammustuse piirkonnas, an epidemic inflammatory disease that often begins with a characteristic skin lesion called erythema chronicum migrans accompanied by headache, stiff neck, fever, and malaise and that weeks or months later manifests itself as migratory polyarthritis, intermittent oligoarthritis, chronic arthritis of the knees, chronic meningoencephalitis, cranial or peripheral neuropathy, migratory musculoskeletal pain, or cardiac abnormalities, a disease caused by bacteria that are spread by the bite of an insect called a tick