this source claims

Authorities in Switzerland also said a former passenger who tested positive was being treated at a Zurich hospital. The passenger had left the ship at St Helena and it was unclear how he had travelled to Switzerland or which countries he might have passed through. Swiss authorities insisted there was “no risk” to the public

It also claims

But a limited spread among close contacts has been observed in some previous outbreaks with the Andes strain, which has spread in South America, including Argentina, where the cruise trip started in March.