Reverse Vaccinology Approach to Potential Vaccine Candidates Against Acinetobacter baumannii

Abstract

Acinetobacter baumannii is a rapidly evolving pathogen that largely inhabits intensive care units (ICU). This opportunistic, gram-negative organism has shown noteworthy taxonomic variations during the past three decades. A. baumannii functions as a catalase-positive, oxidase-negative obligate, aerobic, nonmotile, highly infectious, and multidrug-resistant bacterium. Therefore, the infection caused by this bacterium tends to have a fairly higher incidence rate in immune-compromised individuals ranging from 26.5% to 91%, as it colonizes in skin tissues and secretions of the respiratory tract. Recently, it has been globally labeled as a "red alert" pathogen, setting alarms throughout the medical community, arising mainly due to its widespread antibiotic resistance continuum. There is a dire need for alternative therapeutic intervention to combat A. baumannii-associated infections and the growing resistance. This chapter focuses upon the reverse vaccinology-based steps and strategies to identify novel potential vaccine candidates against this emerging pathogen.

Keywords: A. baumannii; Antibiotic resistance; In silico; PVCs; Reverse vaccinology.