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Pneumococcus

Research Lines

Content with Investigacion Hepatitis .

Hepatitis

  1. Diseño de métodos diagnósticos para el estudio de los virus de las hepatitis (VH) A, B, C, D, E: Diseñamos sistemas de PCR para su detección y caracterización.
  2. Evaluación de métodos diagnósticos de los VH. Colaboramos con empresas para estudios de sensibilidad y especificidad de equipos diagnósticos.
  3.  Estudios de Seroprevalencia de los virus de las hepatitis.
  4.  Epidemiología genómica de genomas completos de VHA, VHB, VHC, VHD y VHE en colaboración con el ECDC. Estudios de trazabilidad del VHE.
  5. Caracterización molecular de virus de las hepatitis mediante secuenciación masiva:               a) VHB: mutantes de escape HBsAg (prevalencia y efectos en la detección del HBsAg). Estudio de mutaciones en epítopos de estimulación inmune y mutaciones asociadas a evolución clínica desfavorable.
    1. b) VHC: resistencias a los antivirales de acción directa. Análisis molecular de subtipos poco frecuentes.
      c) Estudios filogenéticos del VHD.
       d) Análisis genómico del VHE.
       e) Investigación etiológica de hepatitis no filiadas mediante estudios de metagenómica.

Research projects

Content with Investigacion Hepatitis .

1.    Proyecto CIBEREPS 2022. Microbiological and genomic investigation of hepatitis in children by metagenomic approach in case and control subjects (IP: Ana Avellón).
2023-2024. En colaboración con el Hospital San Joan de Deu de Barcelona.

2.    MPY 501-19: Tracking hepatitis E virus infection by means of epidemiological research and whole genome sequencing. Project TrazHE. (IP: Ana Avellón). 2020-2024.

3.    Proyecto CIBEREPS 2021 Metagenomic sequencing to identify viral aetiologies in undiagnosed paediatric cases of meningitis and encephalitis (IP: D. Tarragó). 2021-2022.

4.    MPY 383/19 (PEJ2018-004446-A). Ayudas para la promoción de empleo joven e implantación de la garantía juvenil en I+D+I. análisis de la complejidad de secuencias de los virus de la hepatitis A, B, C; D y E (VHA, VHB, VHC, VHD y VHE) mediante técnicas de secuenciación masiva. (IP: Ana Avellón). 2020-2021.

5.    MPY 1285/16 Movilidad "Salvador de Madariaga" programa estatal de promoción de talento y su empleabilidad. (IP: Ana Avellón). 2016.​

Publications

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Epidemiological trend of hepatitis C-related liver events in Spain (2000-2015): A nationwide population-based study.

7. Rivero-Juárez A, Dashti A, López-López P, Salimo Muadica A, Risalde MA, Köster PC, Machuca I, Bailo B, Hernández de Mingo M, Dacal E, García-Bocanegra I, Saugar JM, Calero-Bernal R, González-Barrio D, Rivero A, Briz V, Carmena D. Protist enteroparasites in wild boar (Sus scrofa ferus) and black Iberian pig (Sus scrofa domesticus) in southern Spain: a protective effect on hepatitis E acquisition? Parasites & Vectors 2020, 13: 281

PUBMED DOI

Nanotechnology: A reality for diagnosis of HCV infectious disease.

Arca-Lafuente S, Martínez-Román P, Mate-Cano I, Madrid R, Briz V. Nanotechnology: A reality for diagnosis of HCV infectious disease. Journal of Infection 2020, 80 (1); 8-15.

PUBMED DOI

Multidisciplinary Group of viral coinfection HIV/Hepatitis (COVIHEP). HCV-coinfection is related to an increased HIV-1 reservoir size in cART-treated HIV patients: a cross-sectional study.

López-Huertas MR, Palladino C, Garrido-Arquero M, Esteban-Cartelle B, Sánchez-Carrillo M, Martínez-Román P, Martín-Carbonero L, Ryan P, Domínguez-Domínguez L, Santos ID, Moral SDLF, Benito JM, Rallón N, Alcamí J, Resino S, Fernández-Rodríguez A, Coiras M, Briz V*, on behalf of the Multidisciplinary Group of viral coinfection HIV/Hepatitis (COVIHEP). HCV-coinfection is related to an increased HIV-1 reservoir size in cART-treated HIV patients: a cross-sectional study. Sci Rep 2019: 9 (1); 5606.

PUBMED DOI

Persistent Low-Level Viremia in treatment HIV infection: An unresolved status.

3. Crespo-Bermejo C, Ramírez de Arellano E, Lara-Aguilar V, Martínez-Román P, Arca Lafuente S, Gómez-Lus ML, Martín-Carbonero L, Briz V. Persistent Low-Level Viremia in treatment HIV infection: An unresolved status. Virulencia 2021, 12: 2919-2931.

PUBMED DOI

Full coding hepatitis E virus genotype 3 genome amplification method.

Muñoz-Chimeno M, Forero JE, Echevarría JM, Muñoz-Bellido JL, Vázquez-López L, Morago L, García-Galera MC, Avellón A. Full coding hepatitis E virus genotype 3 genome amplification method. J Virol Methods. 2016 Apr;230:18-23.

PUBMED DOI

Comparative sensitivity of commercial tests for hepatitis E genotype 3 virus antibody detection.

• Avellón A, Morago L, García-Galera del Carmen M, Muñoz M, Jose-Manuel Echevarría JM. Comparative sensitivity of commercial tests for hepatitis E genotype 3 virus antibody detection. J Med Virol. 2015 Nov;87(11):1934-9.

PUBMED DOI

Epidemiology and predictive factors for early and late mortality in Candida bloodstream infections: a population-based surveillance in Spain

11: Puig-Asensio M, Padilla B, Garnacho-Montero J, Zaragoza O, Aguado JM, Zaragoza R, Montejo M, Muñoz P, Ruiz-Camps I, Cuenca-Estrella M, Almirante B; CANDIPOP Project; GEIH-GEMICOMED (SEIMC); REIPI. Epidemiology and predictive factors for early and late mortality in Candida bloodstream infections: a population-based surveillance in Spain. Clin Microbiol Infect. 2014 Apr;20(4):O245-54.

PUBMED DOI

B Pérez de Val, B Romero, MT Tórtola, L Herrera-León, P Pozo, I Mercader, JL Sáez, M Domingo, E Vidal. Poly-resistant Mycobacterium bovis infection in a human and sympatric sheep, Spain, 2017-2018

B Pérez de Val, B Romero, MT Tórtola, L Herrera-León, P Pozo, I Mercader, JL Sáez, M Domingo, E Vidal. Poly-resistant Mycobacterium bovis infection in a human and sympatric sheep, Spain, 2017-2018. Emerg Infect Dis. 2021 Apr;27(4):1241-1243. doi: 10.3201/eid2704.204467. PMID: 33755008.

DOI

L Bernal-Martínez; L Herrera-Leon; C Valero; P de la Cruz; L Ghimpu; AC Mesa-Arango; G Santoni; L Goterris; R Millán; MJ Buitrago. Differential Diagnosis of Fungal Pneumonias vs.Tuberculosis in AIDS Patients by Using Two New Molecular Methods.

L Bernal-Martínez; L Herrera-Leon; C Valero; P de la Cruz; L Ghimpu; AC Mesa-Arango; G Santoni; L Goterris; R Millán; MJ Buitrago. Differential Diagnosis of Fungal Pneumonias vs.Tuberculosis in AIDS Patients by Using Two New Molecular Methods. J. Fungi 2021, 7, 336. doi.org: 10.3390/jof7050336. PMID: 33925404.

DOI

E Tagliani, RAnthony, TA Kohl, A de Neeling, V Nikolayevskyy, C Ködmön, FP Maurer, S Niemann, D van Soolingen, MJ van der Werf, D Cirillo, ECDC molecular surveillance project participants. Use of a whole genome sequencing-based approach for Mycobacterium tuberculosis surveillance in Europe in 2017-2019: an ECDC pilot study

E Tagliani, RAnthony, TA Kohl, A de Neeling, V Nikolayevskyy, C Ködmön, FP Maurer, S Niemann, D van Soolingen, MJ van der Werf, D Cirillo, ECDC molecular surveillance project participants. Use of a whole genome sequencing-based approach for Mycobacterium tuberculosis surveillance in Europe in 2017-2019: an ECDC pilot study. Eur Respir J. 2021 Jan 5;57(1):2002272. doi: 10.1183/13993003.02272-2020. Print 2021 Jan. PMID: 32732329.

DOI

MJ Iglesias, D Ibarz, A Cebollada, J Comín, MS Jiménez, MC Vázquez, S Samper, Spanish Working Group on MDRTB. The value of the continuous genotyping of multidrug resistant tuberculosis over 20 years in Spain.

MJ Iglesias, D Ibarz, A Cebollada, J Comín, MS Jiménez, MC Vázquez, S Samper, Spanish Working Group on MDRTB. The value of the continuous genotyping of multidrug resistant tuberculosis over 20 years in Spain. Sci Rep. 2020 Nov 24;10(1):20433. doi: 10.1038/s41598-020-77249-x. PMID: 33235225.

DOI

S Campos-Gutierrez, MJ Ramos-Real, R Abreu, MS Jimenez, M Lecuona. Pseudo-ourbreak of Mycobacterium fortuitum, in a hospital bronchoscopy unit.

S Campos-Gutierrez, MJ Ramos-Real, R Abreu, MS Jimenez, M Lecuona. Pseudo-ourbreak of Mycobacterium fortuitum, in a hospital bronchoscopy unit. Am J Infect Control. 2020 Jul;48(7):765-769. doi: 10.1016/j.ajic.2019.11.019. Epub 2019 Dec 24. PMID: 31882175.

DOI

Gascha , Y Meijeb, M Espasac, B Fonta, MS Jiménez, N Fernández-Hidalgo. Disseminated Infection Due to Mycobacterium chimaera After Aortic Valve Replacement.

Gascha , Y Meijeb, M Espasac, B Fonta, MS Jiménez, N Fernández-Hidalgo. Disseminated Infection Due to Mycobacterium chimaera After Aortic Valve Replacement. Revista Española de cardiología. 2019. Vol 72 (6):502-503. DOI: 10.1016/j.rec.2018.06.026. PMID: 30029979

DOI

PBMCs gene expression signature of advanced cirrhosis with high risk for clinically significant portal hypertension in HIV/HCV coinfected patients: A cross-control study

2. Salgüero S, Brochado-Kith O, Virseda Verdices A, Berenguer J, González-García J, Martínez I, Díez C, Hontañón V, Pérez-Latorre L, Fernández-Rodríguez A (‡), Jiménez-Sousa MA (‡,*), and Resino S (‡, *). PBMCs gene expression signature of advanced cirrhosis with high risk for clinically significant portal hypertension in HIV/HCV coinfected patients: A cross-control study. Biomed Pharmacother 2023, 159:114220. (A; FI= 7.42; D1, Pharmacology & Pharmacy; JCR 2021). PMID: 36628818. DOI: 10.1016/j.biopha.2023.114220.

PUBMED

Low anti-SARS-CoV-2 S antibody levels predict increased mortality and dissemination of viral components in the blood of critical COVID-19 patients

4. Martin-Vicente M, Almansa R, Martínez I, Tedim AP, Bustamante E, Tamayo L, Aldecoa C, Gómez JM, Renedo G, Berezo JA, Cedeño JA, Mamolar N, García Olivares P, Herrán-Monge R, Cicuendez R, Enríquez P, Ortega A, Jorge N, Doncel C, Fuente A, Bustamante-Munguira J, Muñoz-Gómez MJ, González-Rivera M, Puertas C, Más V, Vázquez M, Pérez-García F, Rico-Feijoo J, Martín S, Motos A, Fernandez-Barat L, Eiros JM, Domínguez-Gil M, Ferrer R, Barbé F, Trapiello W, Kelvin DJ (¥), Bermejo-Martin JF (* ¥), Resino S (¥), Torres A (* ¥). Low anti-SARS-CoV-2 S antibody levels predict increased mortality and dissemination of viral components in the blood of critical COVID-19 patients. J Intern Med. 2022, 291(2):232–240. (A; FI= 13.07; D1, Medicine, General & Internal; JCR 2021). PMID: 34611927. DOI: 10.1111/joim.13386.

PUBMED

Prevalence and factors associated with SARS-CoV-2 seropositivity in the Spanish HIV Research Network Cohort

5. Berenguer J (*), Díez C, Martín-Vicente M, Mican R, Pérez-Elías MJ, García-Fraile LJ, Vidal F, Suárez-García I, Podzamcer D, Del Romero J, Pulido F, Iribarren JA, Gutiérrez F, Poveda E, Galera C, Izquierdo R, Asensi V, Portilla J, López JC, Arribas JR, Moreno S, González-García J, Resino S (‡), Jarrín I (‡). Prevalence and factors associated with SARS-CoV-2 seropositivity in the Spanish HIV Research Network Cohort. Clin Microbiol Infect. 2021, 27(11):1678-1684. (A; FI= 13.31; D1, Microbiology; JCR 2021). PMID: 34186209 DOI: 10.1016/j.cmi.2021.06.023.

PUBMED

Environmental factors linked to hospital admissions in young children due to acute viral lower respiratory infections: A bidirectional case-crossover study

6. Álvaro-Meca A, Goez MC, Resino R, Matías V, Sepúlveda-Crespo D; Martínez I, Resino S (*). Environmental factors linked to hospital admissions in young children due to acute viral lower respiratory infections: a bidirectional case-crossover study. Environ Res. 2022. 212(Pt B), 113319. (A; FI= 8.43; D1, Public, Environmental & Occupational Health; JCR 2021). PMID: 35447151. DOI: 10.1016/j.envres.2022.113319.

PUBMED

Detection of active hepatitis C in a single visit and linkage to care among marginalized people using a mobile unit in Madrid, Spain

7. Ryan P, Valencia J, Cuevas G, Torres-Macho J, Troya J, Pueyo A, Muñoz-Gómez MJ, Muñoz-Rivas N, Vázquez-Morón S, Martínez, I, Lazarus JV, Resino S (*). Detection of active hepatitis C in a single visit and link-to-care among excluded people using a mobile unit in Madrid, Spain. Int J Drug Policy. 2021, 96:103424. (A; FI= 5.93; Q1, Substance Abuse; JCR 2021). PMID: 34429222 DOI: 10.1016/j.drugpo.2021.103424.

PUBMED

María José Ruiz-Lopéz, Milagros Muñoz-Chimeno, Jordi Figuerola, Ana M. Gavilán, Sarai Varona, Isabel Cuesta, Josué Martínez-de la Puente, Angel Zaballos, Francisca Molero, Ramón C. Soriguer, Mª Paz Sánchez-Seco, Santiago Ruiz, Ana Vázquez. Genomic analysis of West Nile virus lineage 1 isolated from mosquitoes

María José Ruiz-Lopéz, Milagros Muñoz-Chimeno, Jordi Figuerola, Ana M. Gavilán, Sarai Varona, Isabel Cuesta, Josué Martínez-de la Puente, Angel Zaballos, Francisca Molero, Ramón C. Soriguer, Mª Paz Sánchez-Seco, Santiago Ruiz, Ana Vázquez. Genomic analysis of West Nile virus lineage 1 isolated from mosquitoes from 2020-2021 outbreak occurred in Andalusia, Spain. Viruses 2023, 15, 266. https://doi.org/10.3390/v15020266

DOI

Jordi Figuerola, Miguel Ángel Jiménez-Clavero, María José Ruíz-López, Francisco Llorente, Santiago Ruiz, Andreas Hoefer, Pilar Aguilera-Sepúlveda, Jéssica Jiménez Peñuela1, Olaya García-Ruiz, Laura Herrero, Ramón C. Soriguer, Raúl Fernández Delgado, Mari Paz Sánchez-Seco, Josué Martínez-de la Puente, Ana Vázquez. A One Health view of the West Nile virus outbreak in Andalusía (Spain) in 2020

Jordi Figuerola, Miguel Ángel Jiménez-Clavero, María José Ruíz-López, Francisco Llorente, Santiago Ruiz, Andreas Hoefer, Pilar Aguilera-Sepúlveda, Jéssica Jiménez Peñuela1, Olaya García-Ruiz, Laura Herrero, Ramón C. Soriguer, Raúl Fernández Delgado, Mari Paz Sánchez-Seco, Josué Martínez-de la Puente, Ana Vázquez. A One Health view of the West Nile virus outbreak in Andalusía (Spain) in 2020. Emerg Microbes Infect. 2022 Dec;11(1):2570-2578. doi: 10.1080/22221751.2022.2134055.

DOI

Content with Investigacion Hepatitis .

List of staff

Additional 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.

Content with Investigacion Hepatitis .