Fig. 3. P. aeruginosa concentration is higher in patients with Pf phage detected in the sputum within the Stanford CF cohort.
(A) Patients enrolled at the Stanford CF Center with detection of P. aeruginosa by both qPCR and respiratory culture and detection of Pf phage by qPCR. Of the 10 patients with P. aeruginosa detected by PCR but not grown on respiratory culture, 9 had history of P. aeruginosa on previous respiratory culture and 1 patient had no previous records available. Pa, P. aeruginosa. (B) P. aeruginosa concentrations in patients with Pf phage–positive sputum and Pf phage–negative sputum (P = 0.01). Boxes represent IQR with whiskers showing 1.5 × IQR and dots as outliers. Comparison was done by Wilcoxon ranked sum. Outliers on graph were included in analysis.