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Medical Entomology

Research Lines

Content with Investigacion Neisseria, Listeria y Bordetella .

Neisseria, Listeria y Bordetella

• Invasive Meningococcal Disease.

o Laboratory surveillance based on whole-genome sequencing and its application in Public Health.

o Study and characterization of antimicrobial resistance mechanisms.

o Study and evaluation of conventional (polysaccharide) and new-generation (protein) vaccines.

• Gonococcal Infection (Gonorrhea).

o Laboratory surveillance based on whole-genome sequencing and its application in Public Health.

o Study and characterization of antimicrobial resistance mechanisms.

• Listeriosis.

o Laboratory surveillance based on whole-genome sequencing and its application in Public Health.

• Pertussis.

o Development and application of molecular techniques for the diagnosis and characterization of Bordetella pertussis, B. parapertussis, B. holmessi, and B. bronchiseptica.

Research projects

Content with Investigacion Neisseria, Listeria y Bordetella .

1. Project Title: Determination of the degree of identity of common antigens of N. meningitidis and N. gonorrhoeae using genomic and immunological tools.
Principal Investigator: Raquel Abad Torreblanca
Funding Entity: ISCIII. Program: Strategic Action in Intramural Health
Reference: PI23CIII/00040
Period: 2024-2026
Amount Awarded: €68,500

2. Project Title: Meningococcal Disease and Molecular Epidemiology (MEMORY).
Principal Investigator: Raquel Abad Torreblanca and Julio A. Vázquez Moreno
Funding Entity: Pfizer Inc.
Reference: MVP 352/21
Period: 2022-2024
Amount Awarded: €82,834.50

3. Project Title: Modelling Approaches to Guide Intelligent Surveillance for the Sustainable Introduction of Novel Antibiotics. MAGIcIAN.
Principal Investigator: Raquel Abad Torreblanca
Funding Entity: ISCIII / International Joint Action / Joint Programming Initiatives (JPI) Program
Reference: AC19CIII/00002
Period: 2020-2024
Amount Awarded: €46,000

4. Project Title: Epidemiological, Microbiological, and Clinical Analysis of the Listeriosis Outbreak in Andalusia. LISMOAN Study.
Principal Investigator: José Miguel Cisneros Herreros
Funding Entity: FISEVI (Andalusian Public Foundation for Health Research Management)/FPS2020 Call for Proposals
Reference: PI-0001-2020
Period: 2020-2023
Amount Awarded: €114,954

5. Project Title: Population Structure of Neisseria meningitidis Using Massive Sequencing: A Potential Tool for Estimating Vaccine Effectiveness?
Principal Investigator: Raquel Abad Torreblanca
Funding Entity: ISCIII / Strategic Action in Intramural Health
Reference: PI19CIII/00030
Period: 2020-2023
Amount Awarded: €67,153

6. Project Title: Management agreement between the Ministry of Health, Social Services and Equality (Directorate General of Public Health, Quality and Innovation) and the Carlos III Health Institute, for the laboratory determinations corresponding to the 2nd seroprevalence study in Spain.
Principal Investigator: Fernando de Ory and Julio A. Vázquez
Funding Entity: Directorate General of Public Health, Ministry of Health
Reference: MEG151/17
Period: 2018-2020
Amount Awarded: €565,663

7. Project Title: Effectiveness of the Meningococcal B Vaccine in Immunocompromised Children with Sickle Cell Disease
Principal Investigator: Raquel Abad Torreblanca
Funding Entity: Spanish Society of Pediatric Hematology and Oncology Foundation (SEHOP)
Reference: MVP 199/18
Period: 2018-2020
Amount Awarded: €18,285

8. Project Title: Application of Massive Sequencing and Immunological Approaches in the Expression Analysis of New Vaccine Antigens in Meningococcal Populations
Principal Investigator: Raquel Abad Torreblanca
Funding Entity: ISCIII / Strategic Action in Intramural Health
Reference: PI16CIII/00023
Period: 2017-2020
Amount Awarded: €115,084

9. Project Title: fHbp variability over time and potential coverage of the new meningococcal serogroup B vaccine (bivalent rLP2086/fHbp) in Spain.
Principal Investigators: Raquel Abad and Julio A. Vázquez
Funding Entity: Pfizer SLU
Reference: MVP 1273/16
Period: 2017-2020
Amount Awarded: €125,350

10. Project Title: Estimation of protection of a conjugate vaccine against meningococcus serogroup C based on a mathematical model.
Principal Investigator: Julio A. Vázquez and Javier Díez
Funding Entity: Higher Center for Research in Public Health (CSISP)
Reference: MVP 1116/11
Period: 2011-2017
Amount awarded: €143,750

Publications

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Immunogenicity of the Conjugate Meningococcal ACWY-TT Vaccine in Children and Adolescents Living with HIV

Berzosa A, Guillen S, Epalza C, Escosa L, Navarro ML, Prieto LM, Sainz T, de Ory SJ, Montes M, Abad R, Vázquez JA, García IS, Ramos-Amador JT. Microorganisms. 2023 Dec 23;12(1):30

PUBMED DOI

Outbreak of invasive meningococcal disease caused by a meningococcus serogroup B expressing a rare porA genosubtype (19-54, 15), Spain, March to April 2024.

Abad R, Navarro C, García-Amil C, Montes M, Castañeda-García A, Cuadros JA, Galar A, Martin F, Mena E, Pérez de Madrid S, Román C, Soler M, Vázquez JA. Euro Surveill. 2025 Nov;30(44):2500222

PUBMED DOI

Trends in invasive bacterial diseases during the first 2 years of the COVID-19 pandemic: analyses of prospective surveillance data from 30 countries and territories in the IRIS Consortium

Shaw D, Abad R, Amin-Chowdhury Z, Bautista A, Bennett D, Broughton K, Cao B, Casanova C, Choi EH, Chu YW, Claus H, Coelho J, Corcoran M, Cottrell S, Cunney R, Cuypers L, Dalby T, Davies H, de Gouveia L, Deghmane AE, Demczuk W, Desmet S, Domenech M, Drew R, du Plessis M, Duarte C, Erlendsdóttir H, Fry NK, Fuursted K, Hale T, Henares D, Henriques-Normark B, Hilty M, Hoffmann S, Humphreys H, Ip M, Jacobsson S, Johnson C, Johnston J, Jolley KA, Kawabata A, Kozakova J, Kristinsson KG, Krizova P, Kuch A, Ladhani S, Lâm TT, León ME, Lindholm L, Litt D, Maiden MCJ, Martin I, Martiny D, Mattheus W, McCarthy ND, Meehan M, Meiring S, Mölling P, Morfeldt E, Morgan J, Mulhall R, Muñoz-Almagro C, Murdoch D, Murphy J, Musilek M, Mzabi A, Novakova L, Oftadeh S, Perez-Argüello A, Pérez-Vázquez M, Perrin M, Perry M, Prevost B, Roberts M, Rokney A, Ron M, Sanabria OM, Scott KJ, Sheppard C, Siira L, Sintchenko V, Skoczyńska A, Sloan M, Slotved HC, Smith AJ, Steens A, Taha MK, Toropainen M, Tzanakaki G, Vainio A, van der Linden MPG, van Sorge NM, Varon E, Vohrnova S, von Gottberg A, Yuste J, Zanella R, Zhou F, Brueggemann AB. Lancet Digit Health. 2023 Sep;5(9):e582-e593.

PUBMED DOI

Meningococcal carriage in men who have sex with men presenting at a sexual health unit in Spain

Pérez-González A, Carballo R, Araújo-Ameijeiras A, Abad R, Navarro C, Ocampo A, Poveda E, Potel C. Eur J Clin Microbiol Infect Dis. 2023 Mar;42(3):287-296

PUBMED DOI

Effectiveness of a Meningococcal Group B Vaccine (4CMenB) in Children

Castilla J, García Cenoz M, Abad R, Sánchez-Cambronero L, Lorusso N, Izquierdo C, Cañellas Llabrés S, Roig J, Malvar A, González Carril F, Boone ALD, Pérez Martín J, Rodríguez Recio MJ, Galmés A, Caballero A, García Rojas A, Juanas F, Nieto M, Viloria Raymundo LJ, Martínez Ochoa E, Rivas AI, Castrillejo D, Moreno Pérez D, Martínez A, Borràs E, Sánchez Gómez A, Pastor E, Nartallo V, Arteagoitia JM, Álvarez-Fernández B, García Pina R, Fernández Arribas S, Vanrell J, García Hernández S, Mendoza RM, Méndez M, López-Tercero MM, Fernández-Rodríguez Á, Blanco Á, Carrillo de Albornoz FJ, Ruiz Olivares J, Ruiz-Montero R, Limia A, Navarro-Alonso JA, Vázquez JA, Barricarte A. N Engl J Med. 2023 Feb 2;388(5):427-438

PUBMED DOI

Listeriosis outbreak caused by contaminated stuffed pork, Andalusia, Spain, July to October 2019

Fernández-Martínez NF, Ruiz-Montero R, Briones E, Baños E, García San Miguel Rodríguez-Alarcón L, Chaves JA, Abad R, Varela C; LISMOAN team; Lorusso N. Euro Surveill . 2022 Oct;27(43):2200279

PUBMED DOI

Pertactin-Deficient Bordetella pertussis with Unusual Mechanism of Pertactin Disruption, Spain, 1986-2018

14. Mir-Cros A, Moreno-Mingorance A, Martín-Gómez MT, Abad R, Bloise I, Campins M, González-Praetorius A, Gutiérrez MN, Martín-González H, Muñoz-Almagro C, Orellana MÁ, de Pablos M, Roca-Grande J, Rodrigo C, Rodríguez ME, Uriona S, Vidal MJ, Pumarola T, Larrosa MN, González-López JJ. Emerg Infect Dis. 2022 May;28(5):967-976

PUBMED DOI

Large Increase in Azithromycin-Resistant Neisseria gonorrhoeae in Northern Spain

Carballo R, Povoa MC, Abad R, Navarro C, Martin E, Alvarez M, Salgado A, Potel C. Microb Drug Resist. 2022 Jan;28(1):81-86

PUBMED DOI

High susceptibility to zoliflodacin and conserved target (GyrB) for zoliflodacin among 1209 consecutive clinical Neisseria gonorrhoeae isolates from 25 European countries, 2018.

Unemo M, Ahlstrand J, Sánchez-Busó L, Day M, Aanensen D, Golparian D, Jacobsson S, Cole MJ, Torreblanca RA, Ásmundsdóttir LR, Balla E, De Baetselier I, Bercot B, Carannante A, Caugant D, Borrego MJ, Buder S, Cassar R, Cole M, Dam A, Eder C, Hoffmann S, Hunjak B, Jeverica S, Kirjavainen V, Maikanti-Charalambous P, Miriagou V, Mlynarczyk-Bonikowska B, Pakarna G, Patterson L, Pavlik P, Perrin M, Shepherd J, Stefanelli P, Unemo M, Jelena V, Zákoucká H. J Antimicrob Chemother. 2021 Feb 10:dkab024

PUBMED DOI

Molecular characterization of invasive serogroup B Neisseria meningitidis isolates from Spain during 2015-2018: Evolution of the vaccine antigen factor H binding protein (FHbp)

Abad R, García-Amil C, Navarro C, Martín E, Martín-Díaz A, Vázquez JA. J Infect. 2021 Apr;82(4):37-44

PUBMED DOI

Meningococcal Serogroup B Disease in Vaccinated Children

Soler-Garcia A, Fernández de Sevilla M, Abad R, Esteva C, Alsina L, Vázquez J, Muñoz-Almagro C, Noguera-Julian A. J Pediatric Infect Dis Soc. 2020 Sep 17;9(4):454-459

PUBMED DOI

Distribution of DNA gyrase cleavage sites across the Streptococcus pneumoniae genome: relation to transcription and methylation at GATC sites

Ferrándiz MJ, Hernández P, de la Campa AG. Nucleic Acids Res. 2025; 53(21):gkaf1183.

PUBMED DOI

First Insight into the Genome Sequences of Two Linezolid-Resistant Nocardia farcinica Strains Isolated from Patients with Cystic Fibrosis

2: Valdezate S, Monzón S, Garrido N, Zaballos A, Medina-Pascual MJ, Azcona-Gutiérrez JM, Vilar B, Cuesta I. First Insight into the Genome Sequences of Two Linezolid-Resistant Nocardia farcinica Strains Isolated from Patients with Cystic Fibrosis. Genome Announc. 2017 Nov 16;5(46).

PUBMED DOI

Apoptosis, Toll-like, RIG-I-like and NOD-like Receptors Are Pathways Jointly Induced by Diverse Respiratory Bacterial and Viral Pathogens.

3: Martínez I, Oliveros JC, Cuesta I, de la Barrera J, Ausina V, Casals C, de Lorenzo A, García E, García-Fojeda B, Garmendia J, González-Nicolau M, Lacoma A, Menéndez M, Moranta D, Nieto A, Ortín J, Pérez-González A, Prat C, Ramos-Sevillano E, Regueiro V, Rodriguez-Frandsen A, Solís D, Yuste J, Bengoechea JA, Melero JA. Apoptosis, Toll-like, RIG-I-like and NOD-like Receptors Are Pathways Jointly Induced by Diverse Respiratory Bacterial and Viral Pathogens. Front Microbiol. 2017 Mar 1;8:276

PUBMED DOI

Molecular identification, antifungal resistance and virulence of Cryptococcus neoformans and Cryptococcus deneoformans isolated in Seville, Spain

Gago S, Serrano C, Alastruey-Izquierdo A, Cuesta I, Martín-Mazuelos E, Aller AI, Gómez-López A, Mellado E. Molecular identification, antifungal resistance and virulence of Cryptococcus neoformans and Cryptococcus deneoformans isolated in Seville, Spain. Mycoses. 2017 Jan;60(1):40-50

PUBMED DOI

High-Quality Draft Genome Sequence of Babesia divergens, the Etiological Agent of Cattle and Human Babesiosis

7: Cuesta I, González LM, Estrada K, Grande R, Zaballos A, Lobo CA, Barrera J, Sanchez-Flores A, Montero E. High-Quality Draft Genome Sequence of Babesia divergens, the Etiological Agent of Cattle and Human Babesiosis. Genome Announc. 2014 Nov 13;2(6).

PUBMED DOI

Serum galactomannan-based early detection of invasive aspergillosis in hematology patients receiving effective antimold prophylaxis

8: Duarte RF, Sánchez-Ortega I, Cuesta I, Arnan M, Patiño B, Fernández de Sevilla A, Gudiol C, Ayats J, Cuenca-Estrella M. Serum galactomannan-based early detection of invasive aspergillosis in hematology patients receiving effective antimold prophylaxis. Clin Infect Dis. 2014 Dec 15;59(12):1696-702.

PUBMED DOI

Analysis of the protein domain and domain architecture content in fungi and its application in the search of new antifungal targets.

9: Barrera A, Alastruey-Izquierdo A, Martín MJ, Cuesta I, Vizcaíno JA. Analysis of the protein domain and domain architecture content in fungi and its application in the search of new antifungal targets. PLoS Comput Biol. 2014 Jul 17;10(7):e1003733.

PUBMED DOI

Cryptococcus neoformans can form titan-like cells in vitro in response to multiple signals

2. Trevijano-Contador N, de Oliveira HC, García-Rodas R, Rossi SA, Llorente I, Zaballos Á, Janbon G, Ariño J, Zaragoza Ó. Cryptococcus neoformans can form titan-like cells in vitro in response to multiple signals. PLoS Pathog. 2018 May 18;14(5):e1007007.

PUBMED DOI

Reclassification of the Candida haemulonii complex as Candida haemulonii (C. haemulonii group I), C. duobushaemulonii sp. nov. (C. haemulonii group II), and C. haemulonii var. vulnera var. nov.: three multiresistant human pathogenic yeasts

4. Cendejas-Bueno E, Kolecka A, Alastruey-Izquierdo A, Theelen B, Groenewald M, Kostrzewa M, Cuenca-Estrella M, Gómez-López A, Boekhout T. Reclassification of the Candida haemulonii complex as Candida haemulonii (C. haemulonii group I), C. duobushaemulonii sp. nov. (C. haemulonii group II), and C. haemulonii var. vulnera var. nov.: three multiresistant human pathogenic yeasts. J Clin Microbiol.

PUBMED DOI

Content with Investigacion Epidemiología Trastornos del Espectro Autista .

Additional Information

The Medical Entomology Laboratory has accumulated extensive experience in this field, especially in entomological field studies, biology of arthropods of medical interest, vector competence and vector control. Also, in the molecular detection of Leishmania infantum promastigotes in naturally parasitized phlebotomine sand flies, in the molecular identification of blood ingested by hematophagous arthropods and in the study of the immunomodulatory properties of proteins present in the saliva of phlebotomine sand flies and mosquitoes. Our laboratory is currently co-leading the studies of vectors and wild reservoirs of leishmaniasis in the leishmaniasis focus of Fuenlabrada, Madrid. In this sense, we have studied the role of asymptomatic individuals as reservoirs in the outbreak by xenodiagnosis. On the other hand, we have participated since 2007 in the Entomological Surveillance Program in Airports and Ports against Potential Vectors of Exotic Infectious Diseases, a program that is allowing to develop the expansion map in Spain of Aedes albopictus. In 2016-2017, we carried out surveillance of Ae. albopictus in the Community of Castilla-La Mancha. On the other hand, we conducted studies on the role of patients with post-kala-azar dermal leishmaniasis (PKDL) in the transmission of the parasite in Bangladesh and Sudan. In addition, we participate in research studying ticks transmitting Crimean-Congo hemorrhagic fever in Spain.

Currently, it maintains confidentiality agreements with several companies participating in the evaluation of molecules with activity against pathogens in vectors (GSK), in the development of vector traps using artificial intelligence algorithms (Irideon, Spain), and in the evaluation of repellents against phlebotomine sand flies (IRSEA, France).

The laboratory actively participates in outreach activities such as the Science Week or the European Researchers' Night, among others, making medical entomology science available to the general population.

The Medical Entomology Laboratory has accumulated extensive experience in this field, especially in entomological field studies, biology of arthropods of medical interest, vector competence and vector control. Also, in the molecular detection of Leishmania infantum promastigotes in naturally parasitized phlebotomine sand flies, in the molecular identification of blood ingested by hematophagous arthropods and in the study of the immunomodulatory properties of proteins present in the saliva of phlebotomine sand flies and mosquitoes. Our laboratory is currently co-leading the studies of vectors and wild reservoirs of leishmaniasis in the leishmaniasis focus of Fuenlabrada, Madrid. In this sense, we have studied the role of asymptomatic individuals as reservoirs in the outbreak by xenodiagnosis. On the other hand, we have participated since 2007 in the Entomological Surveillance Program in Airports and Ports against Potential Vectors of Exotic Infectious Diseases, a program that is allowing to develop the expansion map in Spain of Aedes albopictus. In 2016-2017, we carried out surveillance of Ae. albopictus in the Community of Castilla-La Mancha. On the other hand, we conducted studies on the role of patients with post-kala-azar dermal leishmaniasis (PKDL) in the transmission of the parasite in Bangladesh and Sudan. In addition, we participate in research studying ticks transmitting Crimean-Congo hemorrhagic fever in Spain.

Currently, it maintains confidentiality agreements with several companies participating in the evaluation of molecules with activity against pathogens in vectors (GSK), in the development of vector traps using artificial intelligence algorithms (Irideon, Spain), and in the evaluation of repellents against phlebotomine sand flies (IRSEA, France).

The laboratory actively participates in outreach activities such as the Science Week or the European Researchers' Night, among others, making medical entomology science available to the general population.

Content with Investigacion Epidemiología Trastornos del Espectro Autista .