WHO | WHO guidelines on hand hygiene in health care- who hand hygiene ,Overview. The WHO guidelines on hand hygiene in health care provide health-care workers (HCWs), hospital administrators and health authorities with a thorough review of evidence on hand hygiene in health care and specific recommendations to improve practices and reduce transmission of pathogenic microorganisms to patients and HCWs.. The present guidelines are intended to be implemented in any ...WHO | WHO guidelines on hand hygiene in health careOverview. The WHO guidelines on hand hygiene in health care provide health-care workers (HCWs), hospital administrators and health authorities with a thorough review of evidence on hand hygiene in health care and specific recommendations to improve practices and reduce transmission of pathogenic microorganisms to patients and HCWs.. The present guidelines are intended to be implemented in any ...