Last year I wrote a couple articles related to illness and your vacation, including this one about cruise ships outbreaks. It’s now been ten months since that article was posted and we’ve got some results to discuss. As the title mentions, there’s good and bad news to cover.
Climbing Number of Cruise Ship Outbreaks
2025 saw 23 recorded outbreaks on cruise ships. That number is up from 18 in 2024. That marks an increase of almost 27.8% year over year. This is a similar, but slightly slower, increase from the 2023-24, which was at a rate of around 28.6%. Both of these numbers are higher than the overall cruise passenger growth during that time, which is to say more people are cruising and they are getting sick more frequently.
As I’ve mentioned in the past, norovirus is by far and away the most common cause of illness. Of the recorded outbreaks last year, almost 74% of them were norovirus. That percentage could be higher since there are unknown illnesses, which means that VSP could not determine what the illness was. Typically, this is done with bacterial cultures made from samples taken from spaces the impacted people all had in common, like a dining area or the pool. Those do not always create clear results, such as a large culture of one type of bacteria. That means that even the unknown illnesses could also have been norovirus.
The Good News
I’m a silver lining sort of person, much to the irritation of many people around me, so I will almost always find the nugget of hope, but there is one to find here. Thus far in 2026, the number of recorded cruise ship outbreaks is lower than previous years at a similar point. We’ve just passed the halfway point of February and there’s only one (1) recorded outbreak at this time.
That number can increase as reports are slightly delayed from initial detection and reporting to the Vessel Sanitation Program (VSP). The delay makes sense as it takes a bit of time to examine and culture problems areas and then log them in the system. As of writing (February 16th), I could easily see an outbreak from the last two weeks not being entered, or even an ongoing outbreak that has yet to conclude from being reported.
However, if we can stick to an average of a single outbreak per month we’d be doing much better than 2025. Since January only had the one occurrence, we’re on track so far.
I can’t find anything specific from any cruise line regarding different approaches to maintenance, but after two years of increasing outbreak numbers it would strike me as sensible that at least some of them reassessed their protocols for cleaning.
What Does This Mean For You?
Putting this in perspective a bit, there were tens of millions of people taking cruises last year. Thousands of those cruises were in the US and were monitored by VSP. Only 23 recorded outbreaks. This is a small portion of the overall cruise industry, including its passengers and staff, that see this happen in a given year. The occurrence rate is trending in the right direction as well, so that portion of cruises that is impacted is getting smaller (for now).
Before we get too footloose and fancy-free regarding cruise ship outbreaks, let’s have a small reality check. We humans easily confuse the phrase, “small chance”, with the statement, “won’t happen.” Getting sick on a cruise can still happen, even if the chances are small. Protecting yourself is easy, though, and it’s mostly just washing your hands. You can read about how to stay healthy while traveling in this article, which I wrote just a few months ago.
The biggest takeaway for you, as a traveler, from this news is that if you wash your hands and cover your sneezes and coughs, you’ll be keeping yourself and everyone else safer.
