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Revista argentina de microbiología

versão impressa ISSN 0325-7541versão On-line ISSN 1851-7617

Resumo

RODRIGUEZ, Carlos Hernán; NASTRO, Marcela  e  FAMIGLIETTI, Angela. Carbapenemases in Acinetobacter baumannii: Review of their dissemination in Latin America. Rev. argent. microbiol. [online]. 2018, vol.50, n.3, pp.327-333. ISSN 0325-7541.  http://dx.doi.org/10.1016/j.ram.2017.10.006.

Carbapenem resistance in gram-negative bacteria by production of carbapenemases is one of the most challenging issues regarding healthcare worldwide. We review the epidemiology and prevalence of carbapenemases in carbapenem-resistant Acinetobacter baumannii isolates from Latin American countries. High resistance rates to antimicrobial agents, particularly to carbapenems, are observed in this region. OXA-23 is the most widely disseminated class D-carbapenemase; it is present in all the countries of the region and is frequently associated to endemic clones CC113/CC79, CC104/CC15, CC110/ST25 and CC109/CC1. The emergence of OXA-72 and NDM-1 represents a novel finding which is observed simultaneously and without clonal relatedness in different countries, some of which are distant from one another, whereas OXA-143 is only present in Brazil. Further collaborative intraregional studies would provide a better understanding of these issues in most of the countries and thus, policies to control the spread of these isolates could be implemented.

Palavras-chave : Acinetobacter baumannii; Latin America; Carbapenemases; Carbapenemhydrolyzing class D β-lactamases; NDM-1.

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