Among the latter, 16S rRNA gene sequencing is one of the most commonly used for bacterial identification [22]. However,
the main limitation of 16S rRNA gene sequencing is due to being too conserved and is not polymorphic enough to differentiate all Acinetobacter spp. Other protein-encoding genes, including recA, rpoB, gyrB, have recently been used for the identification of Acinetobacter isolates.