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MidnightSun77 t1_j8hcsmc wrote on February 14, 2023 at 8:51 AM

Reply to comment by Onetap1 in What do bacteria living in mechanical ventilation feed on ? by malahchi

And finding out that Legionella was the main cause was also very lucky as the Hotel had started to clean the ventilation shafts before a proper investigation of them had started.