Figure 1From: Measuring the effect of enhanced cleaning in a UK hospital: a prospective cross-over study Total weekly aerobic colony counts from 10 hand-touch sites on Wards A and B demonstrating the effect of enhanced cleaning over two 6-month periods. New cases of MRSA infections are indicated for each ward; note the cluster occurring on Ward A following withdrawal of the cleaner in the second six months and again on Ward B following completion of the study.Back to article page