Repeat: To put those figures in perspective, the industry's Cruise Lines International Association says more than 10 million passengers embarked on CLIA member cruise ships from a U.S. port in 2012, and norovirus sickens an estimated 21 million people in the United States every year, according to the CDC.
To put those figures in perspective, the industry's Cruise Lines International Association says more than 10 million passengers embarked on CLIA member cruise ships from a U.S. port in 2012, and norovirus sickens an estimated 21 million people in the United States every year, according to the CDC.