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Updating the approaches to define susceptibility and resistance to anti-tubercu...

Inappropriately high breakpoints have resulted in systematic false-susceptible AST results to anti-TB drugs. MIC, PK/PD and clinical outcome data should be combined when setting breakpoints to minimise the emergence and spread of antimicrobial resistance. https://bit.ly/3i43wb6

O contributo dos serviços de diagnóstico laboratorial para o acesso universal à...

Objetivo: promover o debate sobre a importância do laboratório no apoio à saúde pública e aos serviços de saúde nos países de língua portuguesa, numa perspetiva global e de uma só saúde. Métodos: revisão de literatura, análise dos documentos preparatórios das comunicações do 5º Congresso Nacional de Medicina Tropical, apresentações realizadas pelos oradores de Cabo Verde, Angola e Portugal e o debate que se seg...

CPLP-TB:

A Tuberculose (TB) permanece um grave problema de saúde pública na Comunidade dos Países de Língua Portuguesa (CPLP). Apesar da ampla variância da incidência da TB nos seus estados-membro e de um fluxo migratório contínuo entre os países que integram este grupo, existe uma enorme lacuna no que diz respeito ao conhecimento da estrutura populacional conjunta do Mycobacterium tuberculosis e circulação de estirpes ...

Complete sequences of two Staphylococcus aureus plasmids carrying genes for res...

[P292]; Aim: To gain detailed insight into the genetic organization of two multidrug resistance plasmids, pSM31 and pSM39, from clinical S. aureus isolates collected in a hospital in Lisbon, Portugal, and to identify factors that may explain their selection and persistence. Methods: Plasmid pSM31 was sequenced by Sanger sequencing using cloning and primer walking whereas pSM39 was sequenced by next generation s...

Frequent biofilm production by Staphylococcus epidermidis causing infection in ...

[P270]; Aim: To characterize biofilm production by Staphylococcus epidermidis isolates causing infection in pets or colonizing veterinary staff. Methods: The study collection comprised 129 S. epidermidis isolates, from nasal colonization of vet-erinary staff (n = 112) and causing infection in cats and dogs (n = 17). The capacity to produce biofilm was evaluated by the Crystal Violet (CV) method, performed in fl...

Emergence of non-wild-type populations towards biocides in Staphylococcus epide...

[P269]; Aims: To characterize biocide susceptibility of Staphylococcus epidermidis colonizing veterinary staff; propose epidemiological cut-off (ECOFF) values; assess relationships between biocide and antibiotic resistance phenotypes.Methods: The susceptibility profiles of 112 S. epidermidis isolates from nasal colonization of veter-inary staff towards six biocides (including benzalkonium chloride, chlorhexidin...

Biocide susceptibility in Staphylococcus epidermidis causing infection in pets

[P280]; Aim: To characterize biocide susceptibility of Staphylococcus epidermidis isolates causing infection in pets and evaluate proposed biocide epidemiological cut-off (tentative ECOFF) values. Methods: The study comprised a collection of 17 S. epidermidis isolates collected from several infection sources in cats and dogs from 2001 to 2016. Susceptibility to benzalkonium chloride (BAC), cetrim-ide, chlorhexi...

Development of multidrug resistance in staphylococci driven by efflux

[P282]; Aim: To study the efflux driven response of two major staphylococcal pathogens, S. aureus and S. epi-dermidis to the challenge by non-antibiotic drugs. Methods: We adapted three reference strains to ethidium bromide (EtBr), a broad substrate of bacte-rial efflux pumps. The parental strains, S. aureus ATCC25923, S. epidermidis ATCC12228 and S. epider-midis RP62A were cultured in varying concentrations of...

Characterization of antimicrobial resistance in Staphylococcus epidermidis colo...

Antibiotic and biocide resistance in Staphylococcus epidermidis colonizing huma...

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