The Centers for Disease Control keeps a close eye on how cruise ships stack up in their Green Sheet score, which covers the Port of Galveston.

Every year millions of Americans hit the seas for sun, fun and rest but many also worry they’ll pick up an unwanted guest like a stomach bug.

Close conditions, over-crowding and uncleanliness can make up the perfect storm for health issues.

The Centers for Disease Control keeps a close eye on how cruise ships stack up in their Green Sheet score, which covers the Port of Galveston.

Ships are scored out of 100. A score of 86 or higher is “satisfactory”, 85 or lower is “not satisfactory”.

They look at things like how water is stored, how food is prepped and how clean the pools are – to name a few.

Every ship that sails out of the Port of Galveston scores satisfactory.