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Tuberculous lymphadenitis is one of the most common extrapulmonary manifestation of tuberculosis. Lymphadenitis due to Listeria monocytogenes is rarely described. We present a case of a 59-year-old woman from Mexico presented to the Emergency Department with a 2-week history of erythematous and painful swelling in the right retromandibular area. An ultrasound-guided bedside needle aspiration of the lump was performed by an infectious diseases specialist and a diagnosis of Listeria monocytogenes and tuberculous coinfection was done. To our knowledge this is the first case of tuberculous and Listeria-associated lymphadenitis., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)

Providencia rettgeri, belonging to the genus Providencia, had gained significant interest due to its increasing prevalence as a common pathogen responsible for healthcare-associated infections in hospitals. P. rettgeri isolates producing carbapenemases have been reported to reduce the efficiency of carbapenems in clinical antimicrobial therapy. However, coexistence with other resistance determinants is rarely reported. The goal of this study was the molecular characterization of carbapenemase-producing Providencia spp. clinical isolates. Among 23 Providencia spp. resistant to imipenem, 21 were positive to bla NDM-1 ; one positive to bla NDM-1 and bla OXA-58 like ; and one isolate co-producing bla IMP-27 , bla OXA-24/40 like , and bla OXA-58 like were identified. We observed a low clonal relationship, and the incompatibility groups Col3M and ColRNAI were identified in the plasmid harboring bla NDM-1 . We report for the first time a P. rettgeri strain co-producing bla IMP-27 , bla OXA-24-like , and bla OXA-58 like . The analysis of these resistance mechanisms in carbapenemase co-producing clinical isolates reflects the increased resistance., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier Inc.)