The 2009 US CDC NHSN clinical surveillance definition for Download Table Antimicrobial Resistance in Ventilator Associated Pneumonia: Predictive Microbiology and Evidence Based Therapy Infectious Diseases and Therapy Springer Nature Link VAP Bundle Ventilator Associated Pneumonia Ventilator Associated Pneumonia ( VAP) is a lung infection that occurs in patients who are on mechanical ventilation for more than 48 hours. A VAP bundle is a set of Prevention of ventilator associated pneumonia Pulmonology