Fig. 1From: Impact of a PCR point of care test for influenza A/B on an acute medical unit in a large UK teaching hospital: results of an observational, pre and post intervention studyLength of stay in days of all patients with confirmed influenza during period 1 and period 2. Note: The white diamonds represent the mean days of length of stay in period 1 and 2. Red circles represents all patients in period 1. Blue circles represent all patients in period 2Back to article page