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W. Borges (Yale University) and colleagues published a new abstract on personalized phage therapy for cystic fibrosis, showing an LPS-5 and TIVP-H6 phage cocktail decreased P. aeruginosa biofilm formation and reduced IL-6 secretion for 15 days after treatment. They saw deleterious effects on biofilm formation did not persist at day 27, suggesting a clinical window for phage retreatment.