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Table 4 Legionellosis cases in health care facilities colonised with L. pneumophila sg 2–14 and/or L. pneumophila sg 1 MAb 3/1 negative

From: Virulence of Legionella pneumophila strains isolated from hospital water system and healthcare-associated Legionnaires’ disease in Northern Italy between 2004 and 2009

 

HCFs with reported cases

HCFs without reported cases

Total

HCFs colonised with L. pneumophila sg 1 MAb 3/1 negative

4

14

18

HCFs colonised with L. pneumophila sg 2-14

5

25

30

Total

9

39

48

  1. p = 0.7 according to Fisher’s exact test.