Mário Ramirez

Associate Professor
Instituto de Microbiologia,Faculdade de Medicina de Lisboa, Universidade de Lisboa, Lisboa, Portugal

Laboratory Head
Molecular Microbiology and Infection Unit, Instituto de Medicina Molecular, Lisboa, Portugal

Assistant Professor of Microbiology, Instituto de Microbiologia,Faculdade de Medicina de Lisboa, Universidade de Lisboa, Lisboa, Portugal
Post-Doc, Instituto de Tecnologia Química e Biológica, Oeiras, Portugal
Guest Investigator, The Rockefeller University, NY, USA

Biology : Clinical Microbiology, Microbial Evolution, Population Biology, Molecular Epidemiology, Microbial Typing methods
Mathematical and computational biology : Univariate/Multivariate Statistics for Data Analysis, Graph theory, Resampling Methods, Congruence Measurements, Evolutionary Models

PHYLOViZ - a software allowing the visualization of accessory epidemiological data together with evolutionary hypothesis derived from MLST, MLVA or SNP data developed in the lab in collaboration with INESC.

Comparing Partitions - a site developed in the lab for comparing classification schemes

goeBURST - a globally optimized implementation of the eBURST algorithm for the analysis of MLST data developed in the lab in collaboration with INESC.

Email:

• ramirez_at_fm.ul.pt (replace _at_ by @)
  

Telephone:

• +351217999458

ORCID 0000-0002-4084-6233 Scopus 7201568476 ResearcherID B-4993-2008

Publications after 2003:

See the UMMI publications.

Publications before 2003:

J. Melo-Cristino, J., Ramirez, M., N. Serrano, T. Hänscheid and the Portuguese Surveillance Group for the Study of Respiratory Pathogens. 2002. Macrolide resistance in Streptococcus pneumoniae isolated from patients with community-acquired lower respiratory tract infections in Portugal: Results of a 3-year (1999 – 2001) multicenter surveillance study. Microb. Drug Resist. 9: 73-80. (PMID: 12705685)

Alou, L., Ramirez, M., García-Rey, C., Prieto, J. and H. de Lencastre. 2001. Streptococcus pneumoniae isolates with reduced susceptibility to ciprofloxacin in Spain: clonal diversity and appearance of ciprofloxacin resistant epidemic clones. Antimicrob. Agents Chemother. 45:2955-7. (PMID: 11557501)

Ramirez, M., and A. Tomasz. 1999. Acquisition of new capsular genes among clinical isolates of antibiotic- resistant Streptococcus pneumoniae. Microb. Drug Resist. 5:241-6. (PMID: 10647080)

Severina, E., M. Ramirez, and A. Tomasz. 1999. Prophage carriage as a molecular epidemiological marker in Streptococcus pneumoniae. J. Clin. Microbiol. 37:3308-15. (PMID: 10488197)

Ramirez, M., E. Severina, and A. Tomasz. 1999. A high incidence of prophage carriage among natural isolates of Streptococcus pneumoniae. J. Bacteriol. 181:3618-25. (PMID: 10368133)

Ramirez, M. and A. Tomasz. 1998. Molecular characterization of the complete 23F capsular polysaccharide locus of Streptococcus pneumoniae. J. Bacteriol. 180:5273-8. (PMID: 9748469)

Marchese, A., M. Ramirez, G. C. Schito, Tomasz, A.. 1998. Molecular epidemiology of penicillin-resistant Streptococcus pneumoniae isolates recovered in Italy from 1993 to 1996. J. Clin. Microbiol. 36:2944-9. (PMID: 9738048)

Nesin, M., Ramirez, M., Tomasz, A. 1998. Capsular transformation of a multidrug resistant Streptococcus pneumoniae in vivo. J. Infect. Diseases, 177, 707-703. (PMID: 9498451)

Ramirez, M., Tomasz, A., Morrison, D. 1996. Ubiquitous distribution of the competence related genes comA and comC among isolates of Streptococcus pneumoniae. Microbial Drug Resistance, 3, 39-52. (PMID: 9109095)

Santos Sanches, I., Ramirez, M., Troni, H., Abecassis, M., Padua, M., Tomasz, A., De Lencastre, H. 1995. Evidence for the geographic spread of a methicillin-resistant Staphylococcus aureus clone between Portugal and Spain. J. Clin. Microbiol., 3, 1243-46. (PMID: 7615735)