Emergence of in Minas Gerais, Brazil: Genomic Surveillance to inform Rapid Public Health Responses.

poses a significant global health threat due to its multidrug-resistance and outbreak potential. In this study, we report its emergence in Minas Gerais, Brazil, supported by genomic surveillance that identified Clade-IV isolates, suggested a potential introduction from Colombia, and detected a missense mutation associated with azole resistance.

Comparative Genomic Analysis of a Clinical Isolate of subsp. , a KPC-2 and OKP-B-6 Beta-Lactamases Producer Harboring Two Drug-Resistance Plasmids from Southeast Brazil.

The aim of this study was to unravel the genetic determinants responsible for multidrug (including carbapenems) resistance and virulence in a clinical isolate of subsp. by whole-genome sequencing and comparative analyses. Eighty-three clinical isolates initially identified as carbapenem-resistant were collected from nosocomial infections in southeast Brazil.

The invasive MenC cc103 lineage with penicillin reduced susceptibility persisting in Brazil.

Penicillin is the antibiotic of choice for the treatment of meningococcal infections, and mutations in penA gene are involved with reduced susceptibility (pen) emergence to this antibiotic. This study aimed to characterize the penA allelic diversity, their association with pen phenotype and distribution among prevalent meningococci serogroups in Brazil. The entire penA from 49 invasive strains of distinct serogroups circulating in Brazil for more than two decades were obtained by PCR and sequencing.

Revisiting molecular serotyping of Streptococcus pneumoniae.

Background: Ninety-two Streptococcus pneumoniae serotypes have been described so far, but the pneumococcal conjugate vaccine introduced in the Brazilian basic vaccination schedule in 2010 covers only the ten most prevalent in the country. Pneumococcal serotype-shifting after massive immunization is a major concern and monitoring this phenomenon requires efficient and accessible serotyping methods. Pneumococcal serotyping based on antisera produced in animals is laborious and restricted to a few reference laboratories.

Immune response and protective efficacy of S9 ribosomal protein of Streptococcus pneumoniae in a model of sepsis.

Vaccination is the most promising strategy to reduce the incidence of pneumococcal infection. Although there are vaccines available, all of them are based on polysaccharide antigens (conjugated or not). In addition to their high cost, those vaccines do not cover all serotypes.