Researchers at the Fred Hutchinson Cancer Research Centre followed 2,944 postmenopausal women, most of whom took component in the wider Women’s Health Initiative research between 1993 and 1998. All the women involved in the latest analysis had been identified as having invasive breast tumor and the researchers viewed an array of data on each of them. This included information regarding their tumours, such as for example whether they started in the breast ducts or milk-creating lobes and chemical details about the tumours’ sensitivity to the hormones oestrogen and progesterone.Contact precautions were similar to those in group 1. All individuals received twice-daily intranasal mupirocin for 5 times, plus daily bathing with chlorhexidine-impregnated cloths for the entire ICU stay. All adult ICUs in a participating hospital were assigned to the same research group. Contact-precaution policies, which were based on longstanding assistance from the Centers for Disease Control and Avoidance , were identical and unchanged for all hospitals. Precautions were initiated based on current or historic MRSA cultures or other standard indications.6 Outcomes of cultures obtained on entrance became available the next day.