A four-year follow-up survey of antimicrobial resistance among Acinetobacter baumannii complex from inpatients in Southern Brazil.

Objectives: To determine the trends of antimicrobial resistance for Acinetobacter baumannii complex isolates recovered from inpatients over a 4-year follow-up survey.

Methods: A total of 659 A baumannii complex isolates were recovered from hospitalized patients in Porto Alegre and its metropolitan area, Southern Brazil, from 2017 to 2020. Susceptibility profile was determined for ampicillin/sulbactam, amikacin, gentamicin, imipenem, meropenem, minocycline, polymyxin B and tigecycline.

The dermal armor of mylodontid sloths (Mammalia, Xenarthra) from Cueva del Milodón (Última Esperanza, Chile).

Dermal ossifications (osteoderms, dermal ossicles, osteoscutes) appear independently in various tetrapod lineages. In mammals, however, dermal ossifications are only present in some members of Xenarthra. This clade includes Cingulata (armadillos and their relatives), and Pilosa, including Vermilingua (anteaters) and Folivora (sloths).

Evaluation of a polymyxin drop test for polymyxin resistance detection among non-fermentative gram-negative rods and enterobacterales resistant to carbapenems.

To assess the performance of the drop test for polymyxin B resistance detection among Enterobacterales and non-fermentative gram-negative rods resistant to carbapenems. Seven hundred and fifteen carbapenem-resistant isolates were tested: 628 Enterobacterales species and 87 non-fermentative gram-negative rods. For the polymyxin drop test, concentrations range from 0.

Impact of the blue-carba rapid test for carbapenemase detection on turnaround time for an early therapy against Pseudomonas aeruginosa.

Background: To determine the turnaround time from a blue-carba result until a final microbiological report (bacterial identification plus antimicrobial susceptibility profile) and to infer the impact of an early therapeutic intervention based on the blue-carba results.

Methods: Pseudomonas aeruginosa isolates were recovered from hospitalized patients from Porto Alegre, Brazil, and tested by blue-carba test. Time required for a blue-carba result, right after the sample processing, was compared with those required to get final report (specie identification and antimicrobial susceptibility profile) Isolates blue-carba positive were tested by phenotypically and genotypically for Klebsiella pneumoniae carbapenemase and metallo-β-lactamase genes.