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Table 5 Association of MAb 3/1, CMI and reported cases

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

  a) HCF b) HCF with CMI < 1 c) HCF with CMI >1
MAb 3/1 HCFs without reported cases HCFs with reported cases HCFs without reported cases HCFs with reported cases HCFs without reported cases HCFs with reported cases
Negative(a) 39 9 33 4 6 5
Positive 1 7 1 3 0 4
  p = 0.0006 p = 0.02 p = 0.18
(Fisher’s exact test) (Fisher’s exact test) (Fisher’s exact test)
  1. (a) both the HCF colonized by L. pneumophila. sg 1 MAb 3/1 negative, and all other structures colonized by L. pneumophila sg 2–14.