Figure 2.

Routine ward monitoring using the UVM. Ward 1 (14 rooms) is shown as the solid bar, ward 2 (11 rooms) is shown as the cross-hatched bar, and ward 3 (11 rooms) is shown as the white bar. The toilet in each room was monitored every day prospectively for a week (Monday to Friday). There were 66, 33 and 44 test samples taken from wards 1, 2 and 3, respectively. For ward 2 there was a STAT holiday and samples were not taken on that day so there were 33 samples instead of 44 samples in total.