Ventilator associated pneumonia (VAP) rates in medical surgical Download Scientific Diagram Ventilator associated pneumonia biomarker evaluation (VIBE) study: protocol for a prospective, observational, case cohort study BMJ Open ()? is a lung infection that can cause serious health complications, especially in patients with weakened immune systems. When a patient is Cutting Back Starts With Understanding. Teens Can Join a Paid Research Study Designed to Help Reduce or Quit Vaping. Trialfacts