Royal Caribbean issues health warning for Legionnaires' Disease on Symphony of the Seas

In a notably alarming development, Royal Caribbean has issued a health warning regarding Legionnaires' Disease for guests aboard the Symphony of the Seas, marking the second such warning this year. The cruise line's latest notice came in response to a case where a guest, who sailed on select dates in March and April 2025, was diagnosed with the disease only after returning home. The CDC has advised that while the source of exposure remains unclear, an individual who recently sailed on the Symphony of the Seas contracted Legionella. In conjunction with this advisory, Royal Caribbean has implemented heightened sanitation protocols, which reflect their swift action to align with public health guidelines. Significantly, no outbreak has been reported aboard the vessel, reassuring passengers; the warning was purely precautionary. Passengers on affected sailings—March 9, March 16, April 6, and April 13—were notified via email. Legionnaires' disease, characterized as a severe form of pneumonia caused by the Legionella bacteria, is typically contracted through inhalation of water droplets containing the bacteria, which can often be found in water systems such as hot tubs and cooling towers. The cruise line has encouraged guests to remain vigilant and to consult Royal Caribbean or the CDC for any concerns related to the incident. Furthermore, Royal Caribbean's protocols on managing health issues while at sea include isolating affected passengers to prevent potential transmission, supported by onboard medical personnel and resources. This proactive approach is commendable, particularly within the backdrop of a global health crisis that has forced many in the travel industry to adapt rapidly. It remains to be seen how this incident may affect public perception and future bookings, as health fears continue to permeate the travel industry.