The Swiss authorities online
Ticks can spread a variety of pathogens. The two most common diseases are:
Ticks are commonly found in deciduous forests with dense undergrowth, on the edge of woods and on woodland paths. They lie in wait on low-growing plants (up to 1.5 m) and drop off onto passing warm-blooded hosts (people or animals). In Switzerland, the most common variety of tick is Ixodes ricinus, the castor bean tick.
All areas where ticks are found are risk areas for Lyme disease.
All of Switzerland, apart from the cantons of Geneva and Ticino, is a risk area.
How to protect yourself against ticks:
There is no vaccination available against Lyme disease. This illness is more common than TBE and can be treated with antibiotics.
A vaccine against TBE is available, and the Federal Office of Public Health recommends it to everyone over the age of six who lives or occasionally spends time in a risk area (i.e. anywhere in Switzerland apart from the cantons of Geneva and Ticino). People who are never exposed to any risk (see above) do not need to be vaccinated. For the vaccine to take full effect, vaccination must take place several weeks before any exposure to ticks. Assuming the TBE vaccination is necessary, the costs will be covered by mandatory health insurance (subject to the deductible and franchise) or will be reimbursed by your employer if you are exposed to ticks when at work. There is no specific treatment for TBE.
By law, a tick bite is deemed an accident. Accordingly, you should report the bite to your accident insurance provider if you have to seek medical treatment.