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Table 1 Legionella outbreak isolates from patients and environment in Lidköping 2004

From: Legionnaires’ disease from a cooling tower in a community outbreak in Lidköping, Sweden- epidemiological, environmental and microbiological investigation supported by meteorological modelling

Isolate origin Legionella cfu per L Legionella pneumophila serogroup Monoclonal subtype (Dresden panel) Seven gene SBT (flaA, pilE, asd, mip, mompS, proA, neuA) Sequence type
Patient I   1 Benidorm 6, 10,2,28,9,4,6 639
Patient II   1 Benidorm 6, 10,2,28,9,4,6 639
Patient III   1 Bellingham 7,6,17,3,13,11,11 59
Cooling tower 1, Industry A 400 000 000* 1 Benidorm 6, 10,2,28,9,4,6 639
  800 000 000* 3    
Cooling tower 2, Industry A 300 000 1 Benidorm 6, 10,2,28,9,4,6 639
   1 Benidorm 7,6,17,3,13,11,11 59
Cooling tower 3, Industry B 300 000 4 Portland   
Cooling tower 4, Industry B 600 000 1 Olda 1,4,3,1,1,1,1 1
   1 Bellingham 7,6,17,3,13,11,11 59
Mistmachine, supermarket 79 000 1 Benidorm 7,6,17,3,13,11,11 59
Shower at home Patient II 3 500 6    
Shower at home Patient III 150 12    
  1. * Total concentration of Legionella was 1200 000 000 cfu per L in the suspected source CT1 at Industry A. Ratio of 48 sub cultivated colonies.