Legionella bacteria detected in water systems of Bepop building in Pori

Legionella bacteria has been detected in the water systems of the large Bepop commercial building located in the center of Pori. The building’s owner, Länsi-Suomen Osuuspankki, along with local health authorities, has announced that immediate measures are being taken to address the situation. The water temperature of the hot water supply has been increased, and water is being run from the taps. Showers in the building have been temporarily closed. To date, no cases of illness have been reported.

Water samples have only been collected from a few areas of the large property so far, but sampling will be expanded next week. Yle Pori’s office and radio studio are situated on the upper floors of the Bepop building, which also houses several business offices, a medical center, and restaurants.

The number of Legionella findings has been increasing in the Pori region in recent years. On Tuesday, Yle reported a discovery at the Junnila campsite owned by local parishes. The rise in reported cases is likely due to more thorough testing for the bacteria.

Legionella can cause dangerous pneumonia if it enters the lungs, posing the greatest risk to the elderly and those with weakened immune systems. Drinking contaminated water or washing hands does not pose a significant risk; however, the bacteria can transmit through shower use. The mortality rate for pneumonia caused by Legionella, even with antibiotic treatment, is between 5-10%. Last year, Finland reported 54 identified cases of legionellosis.

Preventing Legionella involves heating hot water to high temperatures and ensuring cold water remains sufficiently cold, as the bacteria thrive in water temperatures between 20-45 degrees Celsius.