The Tick Bite You Should Not Ignore
Switzerland is a Lyme disease hotspot. Our beautiful forests and hiking trails come with a hidden risk – ticks carrying Borrelia burgdorferi, the bacterium that causes Lyme disease (borreliosis). At our practice in Zürich Seefeld, I see patients with both acute tick bites needing evaluation and chronic symptoms potentially related to past Lyme infection.
What Is Lyme Disease?
Lyme disease is a bacterial infection transmitted through the bite of infected Ixodes ticks. In Switzerland, approximately 5-30% of ticks carry Borrelia (depending on the region), and an estimated 10,000 new cases are diagnosed annually. Not every tick bite leads to infection, and not every infection leads to disease – but when Lyme does develop, early recognition and treatment are crucial.
Stages of Lyme Disease
Early localised (days to weeks): The hallmark is erythema migrans – an expanding red rash at the bite site, often (but not always) with a “bull’s-eye” appearance. Accompanied by fatigue, headache, muscle aches, and sometimes fever. Not all patients develop a visible rash, which is why awareness of symptoms is important.
Early disseminated (weeks to months): If untreated, the infection can spread to other organ systems causing multiple skin lesions, facial nerve palsy (Bell’s palsy), meningitis, heart block (Lyme carditis), and migratory joint and muscle pain.
Late disseminated (months to years): Chronic Lyme arthritis (typically affecting large joints, especially the knee) and rarely, chronic neurological symptoms (encephalopathy, neuropathy).
Diagnosis
Early Lyme (erythema migrans) is a clinical diagnosis – blood tests are often negative in the first weeks because antibodies have not yet developed. For later stages, I use the two-tier testing approach: ELISA screening followed by Western blot confirmation. Interpretation requires clinical context – I never treat a test result in isolation.
What We Do: Evidence-Based Lyme Management
Tick bite management: If you come to the practice with a tick still attached, I remove it properly. Not every bite requires antibiotics, but I assess risk and may prescribe prophylactic doxycycline in high-risk situations.
Early Lyme treatment: Doxycycline (or amoxicillin) for 14-21 days. When started promptly, cure rates are excellent.
Disseminated Lyme: Longer antibiotic courses, sometimes intravenous, depending on the manifestation. I coordinate with specialists (neurology, cardiology, rheumatology) when needed.
Post-treatment monitoring: Following up to ensure symptom resolution and addressing any persistent symptoms.
Prevention counselling: Tick avoidance strategies, proper tick removal technique, when to seek medical attention after a bite, and discussion of FSME vaccination (which protects against tick-borne encephalitis but not Lyme).
A Note on “Chronic Lyme”
Some patients experience persistent symptoms after standard Lyme treatment. This is a complex and sometimes controversial area. I approach it with an open mind, thorough investigation for other potential causes (autoimmune conditions, coinfections, post-infectious syndrome), and evidence-based management.
Conclusion
Lyme disease is common in Switzerland and best treated early. If you find a tick, notice a spreading rash, or develop unexplained symptoms after outdoor activities, seek prompt evaluation at our practice in Zürich Seefeld. When it comes to Lyme, early action makes all the difference.
