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Table 1 Percentage of microbial colonization obtained in the different equipment during the two years sampling

From: Persistence of microbial communities including Pseudomonas aeruginosa in a hospital environment: a potential health hazard

Colony Count Feb 2010 Apr 2010 Jun 2010 Oct 2010 Dec 2010 Feb 2011 Mar 2011 Jun 2011 Sep 2011
Low High Low High Low High Low High Low High Low High Low High Low High Low High
Sink (porcelain) 15.4 47.6 15.8 46.2 27.3 34.3 - 34.2 23.1 30.0 25.0 54.2 12.5 58.8 12.5 62.2 28.6 52.9
Tap 7.7 4.8 - 23.1 36.4 34.3 25.0 31.6 38.5 45.0 31.3 37.5 50.0 26.5 5- 29.7 42.9 29.4
Countertop (sinks) - - 15.8 15.4 - - - 2.6 - - - - 12.5 2.9 - - - -
Workbench 15.4 4.8 15.8 7.7 - - - 10.5 7.7 - - 4.2 12.5 - 12.5 - 7.1 -
Shower (+handrail) 7.7 14.3 - - - 8.6 - 13.2 - 5.0 6.3 4.2 - 5.9 - 5.4 - 2.9
Bedside table 15.4 4.8 10.5 7.7 27.3 5.7 12.5 2.6 7.7 - 12.5 - - 2.9 - - 14.3 -
Handrail bed (+bed) - 4.8 5.3 - - - - 2.6 - - - - - - - - - -
Serum support - - 10.5 - - - - - - - - - - - - - - 2.9
Oxygen flask - 4.8 - - - - - - 7.7 - - - - - - - - -
Stethoscope 7.7 - - - - - 12.5 - - - - - - - - - - -
Equip bedside - - - - - - - - - - - - - - - - - -
Medical equipments 7.7 9.5 15.8 - - - 12.5 - 7.7 - - - - - - - - 2.9
Tray 23.1 4.8 5.3 - 9.1 5.7 12.5 - 7.7 5.0 12.5 - - - - 2.7 - 5.9
Hand gel/soap - - - - - 11.4 25.0 2.6 - 15.0 12.5 - - - 25.0 - 7.1 -
Table (meal/work) - - 5.3 - - - - - - - - - 12.5 2.9 - - - 2.9
  1. Results show only high and low levels of contamination per sampling.