Sex workers are now listing whether they have been vaccinated or not and many brothels are also making sure staff are tested regularly.
Customers can now see a profile marked with a blue symbol which shows the worker has been jabbed.
The head of an escort directory, Antoine Maillard, told the Blick newspaper that clients have stayed away and he hopes the symbols will make things clearer.
Like many other businesses, the sex industry has suffered during the pandemic.
Businesses wait for US tariff decision
Switzerland is bracing for Donald Trump's tariff decision on Swiss goods, due by Friday at the latest.
Vacation days could be raised
A motion filed in the National Council would raise Switzerland's legal minimum holiday from four weeks to five for every employee.
Online shoplifting climbs
A US-born scam known as "digital shoplifting" is reaching Swiss online shoppers.
Fake police caught after car chase
A retiree in canton Vaud has turned the tables on two fake police officers who tried to scam him at home.
Heat slows trains
Train delays are climbing as heat cracks the rails.
Geneva court suspends long swimsuit law
Long swimsuits are once again allowed in Geneva's public pools, after the canton's constitutional court suspended the ban.
