Hello all. We are Americans visiting Zurich in a few weeks, then planned on traveling by train to Austria for two nights. Does anyone know if there are requirements beyond the same ones we took to get into Switzerland, Covid-wise? We are from the U.S. and have the Swiss Covid Certificate, all vaccinations/boosters, and a PCR test. But the PCR test will be expired by the time we travel to Austria. Just wondered if there were any checks happening on the train upon entry, if we need another PCR test leaving/returning, etc.
Any help is greatly appreciated - thank you.