M
Mário Ramirez
Researcher at Instituto de Medicina Molecular
Publications - 143
Citations - 6591
Mário Ramirez is an academic researcher from Instituto de Medicina Molecular. The author has contributed to research in topics: Serotype & Multilocus sequence typing. The author has an hindex of 40, co-authored 137 publications receiving 5723 citations. Previous affiliations of Mário Ramirez include Universidade Nova de Lisboa & University of Lisbon.
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Journal ArticleDOI
Streptococcus agalactiae serotype Ib as an agent of meningitis in two adult nonpregnant women.
E. R. Martins,C. Florindo,F. Martins,I. Aldir,M. J. Borrego,L. Brum,Mário Ramirez,José Melo-Cristino +7 more
TL;DR: Characterization by pulsed-field gel electrophoresis and multilocus sequence typing revealed that the isolates were identical and represented the widely distributed ST10/ST8 lineage associated with serotype Ib.
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PCR based differentiation between Streptococcus dysgalactiae subsp. equisimilis strains isolated from humans and horses
Silvia Preziuso,M. D. Pinho,Annarita Attili,José Melo-Cristino,Els Acke,Anne C. Midwinter,Vincenzo Cuteri,Mário Ramirez +7 more
TL;DR: The findings of this study suggest that SDSE strains are host-specific and this multiplex PCR protocol can be useful in further epidemiological studies and for investigating the zoonotic potential of SDSE.
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The Viriato study: update on antimicrobial resistance of microbial pathogens responsible for community-acquired respiratory tract infections in Portugal.
José Melo-Cristino,Letícia Santos,Catarina Silva-Costa,Ana Friães,Marcos D. Pinho,Mário Ramirez +5 more
TL;DR: The Viriato surveillance study showed that penicillin remains the most active antimicrobial agent against S. pyogenes causing tonsillitis, and amoxicillin-clavulanate and the quinolones are the mostactive in vitro simultaneously against S., pneumoniae, H. influenzae and M. catarrhalis.
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Heterogeneity of penicillin-non-susceptible group B streptococci isolated from a single patient in Germany.
Mark van der Linden,Rafael Mamede,Natascha Levina,Peter Helwig,Pedro Vila-Cerqueira,João A. Carriço,José Melo-Cristino,Mário Ramirez,E. R. Martins +8 more
TL;DR: The results support the in-host evolution of β-lactam-resistant GBS, with two PRGBS variants being isolated from one patient, and their divergence from the US strains.
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Streptococcus canis Are a Single Population Infecting Multiple Animal Hosts Despite the Diversity of the Universally Present M-Like Protein SCM.
M. D. Pinho,Geoffrey Foster,Constança Pomba,Miguel P. Machado,Johanna L. Baily,Thijs Kuiken,José Melo-Cristino,Mário Ramirez +7 more
TL;DR: W Whole-genome analysis revealed that emm-like genes found previously in S. canis correspond to divergent scm genes, indicating that what was previously believed to correspond to two genes is in fact the same scm locus.