I wonder how liability will be handled in all the cases worldwide where companies did not cancel services or events and then people die due to novel Coronavirus

I wonder how liability will be handled in all the cases worldwide where companies did not cancel services or events and then people die due to novel Coronavirus. For example, the cruise ships that area currently quarantined in Asia with 10-20 cases of novel Coronavirus on each. I know of passengers trying to get other cruises to cancel their trip and refund their money. If they don't do so and then that next cruise ship has an outbreak and people die, would the ship be liable? Similarly, for this conference in Europe. I wonder how to evaluate the risk in each case. The cruise ships that area currently in quarantine likely wouldn't be liable since it wasn't clear that this would inherently happen, but now the next cruises to depart from similar places should be liable perhaps? Any lawyers on here care to comment? Thanks!