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Investigation
Pneumococcus
Publications
Immunogenicity of a third dose with mRNA-vaccines in the ChAdOx1-S/BNT162b2 vaccination regimen against SARS-CoV-2 variants.
García-Pérez J, Borobia AM, Pérez-Olmeda M, Portolés A, Castaño L, Campins-Artí M, Bertrán MJ, Bermejo M, Arribas JR, López A, Ascaso-Del-Rio A, Arana-Arri E, Fuentes Camps I, Vilella A, Cascajero A, García-Morales MT, Castillo de la Osa M, Pérez Ingidua C, Lora D, Jiménez-Santana P, Pino-Rosa S, Gómez de la Cámara A, De La Torre-Tarazona E, Calonge E, Cruces R, Belda-Iniesta C, Alcamí J, Frías J, Carcas AJ, Díez-Fuertes F. iScience. 2024; 27(9):110728
PUBMED DOILonger intervals between SARS-CoV-2 infection and mRNA-1273 doses improve the neutralization of different variants of concern
García-Pérez J, Bermejo M, Ramírez-García A, De La Torre-Tarazona HE, Cascajero A, Castillo de la Osa M, Jiménez P, Aparicio Gómez M, Calonge E, Sancho-López A, Payares-Herrera C, Layunta Acero R, Vicente-Izquierdo L, Avendaño-Solá C, Alcamí J, Pérez-Olmeda M, Díez-Fuertes F. J Med Virol. 2023; 95(3):e28679
PUBMED DOIImmune response and reactogenicity after immunization with two-doses of an experimental COVID-19 vaccine (CVnCOV) followed by a third-fourth shot with a standard mRNA vaccine (BNT162b2): RescueVacs multicenter cohort study
Ascaso-Del-Rio A, García-Pérez J, Pérez-Olmeda M, Arana-Arri E, Vergara I, Pérez-Ingidua C, Bermejo M, Castillo de la Osa M, Imaz-Ayo N, Riaño Fernández I, Astasio González O, Díez-Fuertes F, Meijide S, Arrizabalaga J, Hernández Gutiérrez L, de la Torre-Tarazona HE, Mariano Lázaro A, Vargas-Castrillón E, Alcamí J, Portolés A; RescueVac study Group. EClinicalMedicine. 2022; 51:101542
PUBMED DOIAdditional Information
The Pneumococcus Unit is in charge of two very important aspects related to pneumococcus infections, such as epidemiological surveillance and basic and translational research of diseases caused by this pathogen. Our unit contributes to the epidemiological surveillance of invasive pneumococcal disease (IPD), characterizing the serotypes and genotypes of invasive pneumococci circulating in Spain, as well as the evolution of antibiotic resistance in this pathogen.
Identification of culture-negative samples (CSF and pleural fluids) is performed using real-time PCR. Serotyping is performed using the Dot-blot and PCR-sequencing technique. Genotyping for the study of outbreaks and characterization of clones associated with hypervirulent and/or multiresistant strains is performed using the MLST technique and the analysis of complete genomes by massive sequencing. In addition, antibiotic susceptibility is determined following the EUCAST criteria.
Our unit belongs to the IBD-labnet network of the ECDC and annually notifies all cases of IPD to the ECDC and also to the IRIS (Invasive Respiratory Infection Surveillance) network. At the level of basic and translational research, our unit is responsible for studying and characterizing different molecular mechanisms of pathogenicity and protection related to pneumococcal infection. Among the main objectives are the molecular characterization of virulence factors, the study of different vaccine candidate proteins and determining the possible impact that tobacco smoke and the formation of biofilms have on the colonization of the respiratory tract.
The Pneumococcus Unit is in charge of two very important aspects related to pneumococcus infections, such as epidemiological surveillance and basic and translational research of diseases caused by this pathogen. Our unit contributes to the epidemiological surveillance of invasive pneumococcal disease (IPD), characterizing the serotypes and genotypes of invasive pneumococci circulating in Spain, as well as the evolution of antibiotic resistance in this pathogen.
Identification of culture-negative samples (CSF and pleural fluids) is performed using real-time PCR. Serotyping is performed using the Dot-blot and PCR-sequencing technique. Genotyping for the study of outbreaks and characterization of clones associated with hypervirulent and/or multiresistant strains is performed using the MLST technique and the analysis of complete genomes by massive sequencing. In addition, antibiotic susceptibility is determined following the EUCAST criteria.
Our unit belongs to the IBD-labnet network of the ECDC and annually notifies all cases of IPD to the ECDC and also to the IRIS (Invasive Respiratory Infection Surveillance) network. At the level of basic and translational research, our unit is responsible for studying and characterizing different molecular mechanisms of pathogenicity and protection related to pneumococcal infection. Among the main objectives are the molecular characterization of virulence factors, the study of different vaccine candidate proteins and determining the possible impact that tobacco smoke and the formation of biofilms have on the colonization of the respiratory tract.