Required is not recommended: the first is what the border asks about, the second is what a clinic would suggest. Both, for Switzerland, then the number to dial and what care costs a visitor. Applies to every guide in Switzerland: Interlaken & the Bernese Oberland, Zermatt, Lucerne, Grindelwald, Zurich, St. Moritz and 3 more.
Required to enter
Nothing. No vaccination certificate is asked for at the border.
Recommended
Tetanus up to date
Tick-borne encephalitis for a summer in forest below 1,500m
Emergency number
144 for an ambulance, 1414 for mountain rescue (Rega)
Care for visitors
Excellent and cheap
Among the best in the world, and among the most expensive. Treatment is billed and there is no free emergency care for visitors — the EHIC covers EU citizens, everybody else needs insurance. Rega, the air rescue service, will fly you off a mountain and will invoice for it.
Nothing infectious. Altitude sickness above 3,000m, which the Jungfraujoch train reaches in two hours from 570m, and which catches people out. Ticks in summer woodland. And the sun at altitude, which burns through cloud.
The general rules — clinic timing, water, mosquitoes, insurance — are in travel health tips.