Genome sequence of an Acinetobacter pittii strain obtained from a red-lored parrot with pneumonia

Area of Science:

• Microbiology
• Genomics
• Antimicrobial Resistance

Background:

• Acinetobacter pittii is an opportunistic pathogen.
• Antibiotic resistance in Acinetobacter species is a growing concern.
• Zoonotic transmission of Acinetobacter strains can occur.

Purpose of the Study:

• To characterize a multidrug-resistant Acinetobacter pittii strain isolated from a parrot with pneumonia.
• To investigate the genetic basis of antibiotic resistance and virulence in this strain.

Main Methods:

• Bacterial isolation and identification.
• Antimicrobial susceptibility testing.
• Whole-genome sequencing and analysis.

Main Results:

• The isolate, Acinetobacter pittii 978-A_19, demonstrated resistance to multiple antibiotics including ampicillin, carbenicillin, cephalosporins, clindamycin, and trimethoprim + sulfamethoxazole.
• Genomic analysis identified a novel blaADC allele and a blaOXA-502 gene.
• The genome also contains virulence genes associated with adherence and biofilm formation, alongside types I, II, and IV secretion systems.

Conclusions:

• Acinetobacter pittii 978-A_19 possesses a complex resistance and virulence profile.
• The presence of novel resistance genes and virulence factors highlights the potential for this strain to cause severe infections.
• Further research is needed to understand the implications of such strains in both animal and human health.