Glossary

Lyme disease

Lyme disease

Borreliose·Also: Lyme-Borreliose

Lyme borreliosis is a bacterial infection transmitted by tick bites. An early sign can be a ring-shaped reddening of the skin around the bite site; if left untreated, the joints, nerves or heart may be affected later on.

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Editorial content · as of 9/5/2026