Health
Cruise ship hot tubs may have exposed travelers to Legionella, CDC finds
two Legionnaires' disease An outbreak on a cruise ship was likely caused by the ship's private hot tub, according to one report. new report From the Centers for Disease Control and Prevention.
Health authorities received reports of more than a dozen cases among passengers on the two ships between November 2022 and June 2024. This disease is a severe form of pneumonia caused by Legionella bacteria.
Eight travelers on one ship became ill, including one suspected case, and four on the other ship became ill. The name of the vessel or cruise line was not disclosed in the report.
“Epidemiological data collected from patient interviews, environmental assessments, and sampling results identified private hot tubs on cabin balconies as the most likely source of exposure,” the CDC said in an Oct. 24 report. has been identified.”
On the first ship, called Cruise Ship A in the report, Legionella was detected in six of the 10 private balcony hot tubs. “Of the six private balcony hot tubs where Legionella was detected, four had Legionella concentrations greater than 100 colony forming units (CFU)/mL, and two had Legionella concentrations greater than 1,000 CFU/mL. ,” the report states. “The hot tub remained closed until operational and maintenance procedures were changed and sampling results for Legionella were no longer detected.”
The outbreak on the ship was the largest outbreak health authorities have investigated on a cruise ship since 2008.
Bacteria were also detected in Cruise Ship B's eight private balcony hot tubs, which were closed “until post-cleaning sampling results from each no longer contain Legionella bacteria.”
Of the 12 sick passengers, 10 were hospitalized. There were no fatalities. Only two people stayed in cabins with hot tubs with balconies, the report said, but “even cabins in private areas can spread aerosols into common areas, potentially exposing people who don't use the hot tub themselves. “There is a certain sex.”
Although the cruise line followed CDC requirements for operating private hot tubs, the report said they were “insufficient” to prevent bacterial growth.
Cruise ship medical facilities:What happens if you get sick or injured (or bitten by a monkey)?
During the investigation, the cruise line changed the list of passengers and crew members who may have been exposed to Legionnaires' disease. “Both cruise lines ultimately changed the operation and maintenance of their private hot tubs, removing heating elements. The tubs were filled only upon guest request, drained between uses, and cleaned more frequently. Disinfection was being carried out,” the report said.
Filtration elements were also removed from Cruise Ship A's equipment. Both ships are still sampling.
Richard Miller, founder and president of Environmental Safety Technologies, Inc., said small amounts of Legionella bacteria are often present in the water cruise ships use for drinking water, showers and other amenities. Masu. he told USA TODAY last year.. However, their amounts are usually not large enough to cause illness.
However, bacteria can also grow in environments such as warm water. “They just have to manage it and make sure it doesn't happen again,” he said at the time.
The CDC noted in its report that many patients “reported other potential exposure locations during their travels, such as hotels and shore excursions,” but common among travelers. He said the only exposure was on the cruise.
Nathan Diller is a consumer travel reporter for USA TODAY based in Nashville. Please contact us at [email protected].
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Sources 2/ https://www.usatoday.com/story/travel/cruises/2024/10/29/cruise-legionnaires-disease-outbreaks-hot-tubs-cdc/75920302007/ The mention sources can contact us to remove/changing this article |
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