Figure I.7.3. Organism survival on HCWs’ hands.

Figure I.7.3Organism survival on HCWs’ hands*

(A) Microorganisms (in this case Gram-positive cocci) survive on hands. Reprinted from Pittet, 2006885 with permission from Elsevier.

(B) When growing conditions are optimal (temperature, humidity, absence of hand cleansing, or friction), microorganisms can continue to grow. Reprinted from Pittet, 2006885 with permission from Elsevier.

(C) Bacterial contamination increases linearly over time during patient contact. Adapted with permission from Pittet, 1999.14

From: 7, Transmission of pathogens by hands

Cover of WHO Guidelines on Hand Hygiene in Health Care
WHO Guidelines on Hand Hygiene in Health Care: First Global Patient Safety Challenge Clean Care Is Safer Care.
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