The real-life version of the horror cruise is indeed a bit frightening.

An expedition cruise to the polar regions, originally meant to view Antarctic scenery, ended up turning into a virus incident halfway through.
Foreign media reported the appearance of #Hantavirus infections on the ship, with some people already dead, and many diagnosed or suspected cases.
The key point is that this time, it's not the common Hantavirus, but the Andes strain.
Most Hantaviruses are transmitted by rodents, and human-to-human transmission is rare.
But the Andes strain is different; it is one of the few Hantaviruses that can potentially transmit between humans, especially in enclosed environments like a cruise ship.
One ship, hundreds of people, eating, living, and activities all together.
Once an infectious disease appears, a cruise ship can easily become an amplifier.
What’s most frightening about this isn’t just the virus itself, but several keywords stacking together:
Polar cruise
Enclosed space
Multiple infections
Returning travelers
Cross-border tracking
Possible human-to-human transmission
In the past, people thought viruses were far away, maybe in forests, villages, or the wild.
But now, one person boards a ship, traveling across several countries, and after disembarking, everyone returns home, and the risk spreads as well.
This is the most realistic horror.