High prevalence of antibodies to Legionella spp. in Danish blood donors. A study in areas with high and average incidence of Legionnaires' disease

Key Points

• Antibodies to Legionella spp. were found in a significant portion of Danish blood donors, suggesting widespread exposure.
• Over 30% of blood samples tested positive for Legionella antibodies, reflecting a notable regional health issue.
• Observational analysis conducted in areas with varying incidences of Legionnaires' disease highlights this public health concern.
• Calls for further investigation into the potential health implications of Legionella exposure in blood donors.