That's unlikely, this isn't the first time nor will it be the last cruise ships will be implicated in the spreading of infectious diseases.

Everybody knows cruise ships are inherently problematic in this regard due to the large numbers of international travelers living in close quarters for an extended period. It doesn't stop millions from using them, for some reason.

https://www.cdc.gov/h1n1flu/guidance/cruiseships.htm

https://www.cdc.gov/nceh/vsp/surv/gilist.htm

https://wwwnc.cdc.gov/travel/yellowbook/2020/travel-by-air-l...