Recent Legionnaires’ Disease Outbreaks

Mihara, Japan • March 2017
Legionella was detected in 39 people who complained of pneumonia-like symptoms after visiting an onsen in Mihara, Japan. 37 were hospitalized, including a man in his 50s who has died. The onsen has indoor and outdoor bathing facilities supplied by hot spring water at approximately 45 degrees C (113 degrees F) and an adjoining inn with hot spring baths in each guest room. It was closed on March 21.

Melbourne • March 2017
Three men and two women ranging from 51 to 71 years of age were hospitalized with Legionnaires’ disease in late March to early April. All five reported spending time in the eastern end of Melbourne’s central business district in the days before onset of illness. One of the patients required life support in intensive care but all have been discharged. Authorities are sampling in search for the source and have disinfected several systems and warned people experiencing pneumonia or flu-like symptoms to see their physician.

 

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