Probiotics Do Not Aid Prevention of Ventilator Assisted Pneumonia Contagion Live Ventilator associated Pneumonia: They've Zapped VAP RT PROPHY VAP: Ceftriaxone to prevent early ventilator associated pneumonia The Bottom Line Ventilator Associated Pneumonia (VAP) is a serious ICU risk but it can be prevented with the right care. Key risk factors: prolonged ventilation, poor oral hygiene, improper positioning, and contaminated equipment.