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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.