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[Lyme borreliosis--treatment and prevention].

Several antimicrobials are effective for the treatment of all stages of Lyme borreliosis. Parenteral therapy is usually only required for neuroborreliosis and cardiac disease with 3rd degree atrioventricular block, while oral antibiotics are sufficient for most other manifestations. In the past years a trend of prolongation of treatment can be noted. However, no evidence from controlled clinical studies is available to suggest that extension of treatment is beneficial. The risk of developing Lyme borreliosis in Switzerland is low. Prophylactic antibiotic treatment after a tick bite is not recommended.