Legionnaire's disease in Spain (Barcelona area)

Public health authories in the Barcelona area are investigating an outbreak of Legionnaire's disease. From 5 to 18 November 2021, 26 cases have been detected. Sixteen cases have been admitted to hospital. All were exposed in the municipalities of Montmeló or Montornès del Vallès. The source of the infection is unclear, but the possible involvement of industrial water cooling towers is being investigated.

Legionnaire's disease is spread by inhalation of Legionella bacteria in water spray or aerosols. Outbreaks have been linked to heating or cooling systems, hot tubs, fountains and swimming pools

Risk of infection is greatest for smokers, the elderly, people with a chronic lung condition and those with a weakened immune system. There is no vaccine against Legionnaires' disease.

Advice to travellers

Travellers to the Barcelona area should be made aware of the current outbreak, how the infection is transmitted and the symptoms of infection.

• Showers in accommodation that have not been recently used should be flushed through with hot water before first use.

• Travellers should seek prompt medical advice if they develop an influenza-like illness with fever, cough or shortness of breath during their stay or for up to two weeks after return. They should inform the healthcare professional they may have been exposed to Legionnaires' disease and mention the area they have visited.

For further information see Legionellosis.