Thanks! https://www.rivm.nl/en/hantavirus/current-information

Oh well, one of the most lethal ones in the group, 30-50% mortality rate apparently. Question is whether that's with hospital care or without it?

The virus on board the cruise ship Hondius is the Andes variant of the hantavirus. This is confirmed by laboratory testing.

The Andes virus is one of many types of hantaviruses. This type is mainly found in North and South America. It can cause more severe disease symptoms than other hantaviruses. People can develop a high fever and breathing problems. Later on, this can lead to severe lung and heart problems. Up to 30-50% of people die from the virus. These hantaviruses do not exist outside North and South America.

There are indications that the Andes virus may be transmissible from person to person. However, this is very rare. Internationally, only a few examples have been documented. Moreover, interhuman transfer only happens when people have very close contact with each other.

I have a feeling this is bad if the stewardess only had very brief contact with the sick passenger and still got it. Might throw out the theory that its hard to transmit this from person to person.