Zaandam Alaska Cruise CDC Reports Gastrointestinal Outbreak

[ExpatCruise 0]

Holland America has had another set back the  Zaandam  was on one of its Alaska Cruises.   The CDC has reported  Gastrointestinal Outbreaks on the ship, the news reports 73 cases out of  2063 total on the ship.  Cruise ships in US Waters are required to report these cases to CDC but if this was a non US Cruise no requirement to report to CDC.   

I read in another news report that Holland America Line has had 19 cases of Gastrointestinal  Sicknesses since 2010.  Which is the second worst record reported, only Princess another brand is the Carnival Group has more reported outbreaks.  The CDC has set a 2% limit for the reporting requirement.

https://www.cdc.gov/nceh/vsp/surv/outbreak/2018/Zaandam_6-18.html

[AndiD 189]

I'm wondering if it has anything to do with the average age of passenger on HAL- they would be less able to fight it off, hence more passengers would present with it out of a single incident...