Introductory Chapter: Pneumonia IntechOpen Epidemiology, Treatment, and Prevention of Nosocomial Bacterial Pneumonia VAP #HAP #pneumonia The diagnosis of VAP is difficult as clinical signs suggestive of pneumonia, such as fever, tachycardia, and leukocytosis, are nonspecific in critically ill patients. Moreover, particularly in Review of Hospital Acquired, Ventilator Associated, and Health CareAssociated Pneumonia in Immunocompetent Adults What is the definition of hospitalacquired pneumonia (HAP) and how does it differ from ventilatorassociated pneumonia (VAP)? Frontiers Advancements in alternative approaches to address antimicrobial resistance in bacterial pneumonia: a comprehensive review