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Gallego-García P, Estévez-Gómez N, De Chiara L, Alvariño P, Juiz-González PM, Torres-Beceiro I, Poza M, Vallejo JA, Rumbo-Feal S, Conde-Pérez K, Aja-Macaya P, Ladra S, Moreno-Flores A, Gude-González MJ, Coira A, Aguilera A, Costa-Alcalde JJ, Trastoy R, Barbeito-Castiñeiras G, García-Souto D, Tubío JMC, Trigo-Daporta M, Camacho-Zamora P, García Costa J, González-Domínguez M, Canoura-Fernández L, Glez-Peña D, Pérez-Castro S, Cabrera JJ, Daviña-Núñez C, Godoy-Diz M, Treinta-Álvarez AB, Veiga MI, Sousa JC, Osório NS, Comas I, González-Candelas F, Hong SL, Bollen N, Dellicour S, Baele G, Suchard MA, Lemey P, Agulla A, Bou G, Alonso-García P, Pérez-Del-Molino ML, García-Campello M, Paz-Vidal I, Regueiro B, Posada D. Dispersal history of SARS-CoV-2 in Galicia, Spain. medRxiv 2024:2024.02.27.24303385. [PMID: 38463998 PMCID: PMC10925372 DOI: 10.1101/2024.02.27.24303385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The dynamics of SARS-CoV-2 transmission are influenced by a variety of factors, including social restrictions and the emergence of distinct variants. In this study, we delve into the origins and dissemination of the Alpha, Delta, and Omicron variants of concern in Galicia, northwest Spain. For this, we leveraged genomic data collected by the EPICOVIGAL Consortium and from the GISAID database, along with mobility information from other Spanish regions and foreign countries. Our analysis indicates that initial introductions during the Alpha phase were predominantly from other Spanish regions and France. However, as the pandemic progressed, introductions from Portugal and the USA became increasingly significant. Notably, Galicia's major coastal cities emerged as critical hubs for viral transmission, highlighting their role in sustaining and spreading the virus. This research emphasizes the critical role of regional connectivity in the spread of SARS-CoV-2 and offers essential insights for enhancing public health strategies and surveillance measures.
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Vallejo A, Moldes LM, Trigo M, Ordoñez P, Rodriguez-Otero L, Cabrera JJ, Gude MJ, Navarro D, Cañizares A, García-Campello M, Agulla A, Aguilera A. Generalized implementation of reflex testing of hepatitis C in Galicia: Results for reflection. Enferm Infecc Microbiol Clin (Engl Ed) 2022; 40:483-488. [PMID: 35729051 DOI: 10.1016/j.eimce.2022.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/11/2020] [Accepted: 12/18/2020] [Indexed: 06/15/2023]
Abstract
INTRODUCTION The implementation of reflex testing of active hepatitis C virus (HCV) infection, together with the incorporation of informative alerts in the reports, has shown that it significantly reduces the number of patients who were not referred for therapeutic evaluation. METHODS Since the implementation in 2018 of the DUSP in the Microbiology Services of the Galician Health Service hospitals (SERGAS), new diagnoses of active HCV infection have been retrospectively identified and characterized. RESULTS In 2018, a total of 258 patients with unknown active HCV infection (70,2% men, middle age 52 years) were identified through by reflex testing from consultations of primary and specialized care units in 54.8% and 39.8% respectively, as well as from other locations by 5.4%. Of the 258 patients, 81.0% were referred for therapeutic evaluation, with a median of 54 days from their diagnosis. In 58.3% of the cases the reflex testing was determined by viral load, the predominant genotype was 1a (30,7%) and 52,1% were treated, observing sustained viral response (SVR) in 93.7 % of these. CONCLUSION The generalized implementation of the HCV reflex testing together with informative alerts in Galicia has allowed us to obtain referral rates for treatment similar to those obtained in other studies. However, there is a wide variability between the different centers that require the incorporation of improvements, such as training or the use of rescue measures for optimization.
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Affiliation(s)
- Aldara Vallejo
- Servicio de Microbiología, Complexo Hospitalario Universitario de Santiago, Santiago de Compostela (La Coruña), Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain
| | - Luz María Moldes
- Servicio de Microbiología, Complexo Hospitalario Universitario de A Coruña, La Coruña, Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain
| | - Matilde Trigo
- Servicio de Microbiología, Complexo Hospitalario de Pontevedra, Pontevedra, Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain
| | - Patricia Ordoñez
- Servicio de Microbiología, Complexo Hospitalario Arquitecto Marcide-Profesor Novoa Santos, Ferrol (La Coruña), Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain
| | - Luis Rodriguez-Otero
- Servicio de Microbiología, Complexo Hospitalario Universitario de Ourense, Ourense, Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain
| | - Jorge Julio Cabrera
- Servicio de Microbiología, Hospital Universitario Álvaro Cunqueiro, Vigo (Pontevedra), Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain
| | - María José Gude
- Servicio de Microbiología, Hospital Universitario Lucus Augusti, Lugo, Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain
| | - Daniel Navarro
- Servicio de Microbiología, Complexo Hospitalario Universitario de Santiago, Santiago de Compostela (La Coruña), Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain
| | - Angelina Cañizares
- Servicio de Microbiología, Complexo Hospitalario Universitario de A Coruña, La Coruña, Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain
| | - Marta García-Campello
- Servicio de Microbiología, Complexo Hospitalario de Pontevedra, Pontevedra, Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain
| | - Andrés Agulla
- Servicio de Microbiología, Complexo Hospitalario Arquitecto Marcide-Profesor Novoa Santos, Ferrol (La Coruña), Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain
| | - Antonio Aguilera
- Servicio de Microbiología, Complexo Hospitalario Universitario de Santiago, Santiago de Compostela (La Coruña), Spain; Departamento de Microbioloxia e Parasitoloxía, Universidade de Santiago de Compostela, Santiago de Compostela (La Coruña), Spain; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), Spain.
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Vallejo A, Moldes LM, Trigo M, Ordoñez P, Rodriguez-Otero L, Cabrera JJ, Gude MJ, Navarro D, Cañizares A, García-Campello M, Agulla A, Aguilera A. Generalized implementation of reflex testing of hepatitis C in Galicia: Results for reflection. Enferm Infecc Microbiol Clin 2021; 40:S0213-005X(21)00025-2. [PMID: 33632540 DOI: 10.1016/j.eimc.2020.12.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/11/2020] [Accepted: 12/18/2020] [Indexed: 01/18/2023]
Abstract
INTRODUCTION The implementation of reflex testing of active hepatitis C virus (HCV) infection, together with the incorporation of informative alerts in the reports, has shown that it significantly reduces the number of patients who were not referred for therapeutic evaluation. METHODS Since the implementation in 2018 of the DUSP in the microbiology services of the Galician Health Service hospitals (SERGAS), new diagnoses of active HCV infection have been retrospectively identified and characterized. RESULTS In 2018, a total of 258 patients with unknown active HCV infection (70,2% men, middle age 52 years) were identified through by reflex testing from consultations of primary and specialized care units in 54.8% and 39.8% respectively, as well as from other locations by 5.4%. Of the 258 patients, 81.0% were referred for therapeutic evaluation, with a median of 54 days from their diagnosis. In 58.3% of the cases the reflex testing was determined by viral load, the predominant genotype was 1a (30,7%) and 52,1% were treated, observing sustained viral response in 93.7% of these. CONCLUSION The generalized implementation of the HCV reflex testing together with informative alerts in Galicia has allowed us to obtain referral rates for treatment similar to those obtained in other studies. However, there is a wide variability between the different centers that require the incorporation of improvements, such as training or the use of rescue measures for optimization.
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Affiliation(s)
- Aldara Vallejo
- Servicio de Microbiología, Complexo Hospitalario Universitario de Santiago, Santiago de Compostela (La Coruña), España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España
| | - Luz María Moldes
- Servicio de Microbiología, Complexo Hospitalario Universitario de A Coruña, La Coruña, España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España
| | - Matilde Trigo
- Servicio de Microbiología, Complexo Hospitalario de Pontevedra, Pontevedra, España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España
| | - Patricia Ordoñez
- Servicio de Microbiología, Complexo Hospitalario Arquitecto Marcide-Profesor Novoa Santos, Ferrol (La Coruña), España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España
| | - Luis Rodriguez-Otero
- Servicio de Microbiología, Complexo Hospitalario Universitario de Ourense, Orense, España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España
| | - Jorge Julio Cabrera
- Servicio de Microbiología, Hospital Universitario Álvaro Cunqueiro, Vigo (Pontevedra), España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España
| | - María José Gude
- Servicio de Microbiología, Hospital Universitario Lucus Augusti, Lugo, España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España
| | - Daniel Navarro
- Servicio de Microbiología, Complexo Hospitalario Universitario de Santiago, Santiago de Compostela (La Coruña), España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España
| | - Angelina Cañizares
- Servicio de Microbiología, Complexo Hospitalario Universitario de A Coruña, La Coruña, España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España
| | - Marta García-Campello
- Servicio de Microbiología, Complexo Hospitalario de Pontevedra, Pontevedra, España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España
| | - Andrés Agulla
- Servicio de Microbiología, Complexo Hospitalario Arquitecto Marcide-Profesor Novoa Santos, Ferrol (La Coruña), España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España
| | - Antonio Aguilera
- Servicio de Microbiología, Complexo Hospitalario Universitario de Santiago, Santiago de Compostela (La Coruña), España; Departamento de Microbioloxia e Parasitoloxía, Universidade de Santiago de Compostela, Santiago de Compostela (La Coruña), España; Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela (La Coruña), España.
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Méndez S, Agulla A, Luaces J. [Vertical transmission of methicillin resistant Staphylococcus aureus]. Enferm Infecc Microbiol Clin 2011; 29:75-6. [PMID: 21194806 DOI: 10.1016/j.eimc.2010.04.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2010] [Revised: 04/21/2010] [Accepted: 04/30/2010] [Indexed: 11/29/2022]
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Mora A, Blanco M, López C, Mamani R, Blanco JE, Alonso MP, García-Garrote F, Dahbi G, Herrera A, Fernández A, Fernández B, Agulla A, Bou G, Blanco J. Emergence of clonal groups O1:HNM-D-ST59, O15:H1-D-ST393, O20:H34/HNM-D-ST354, O25b:H4-B2-ST131 and ONT:H21,42-B1-ST101 among CTX-M-14-producing Escherichia coli clinical isolates in Galicia, northwest Spain. Int J Antimicrob Agents 2011; 37:16-21. [DOI: 10.1016/j.ijantimicag.2010.09.012] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 09/18/2010] [Accepted: 09/24/2010] [Indexed: 11/29/2022]
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Pérez-Alvarez L, Carmona R, Muñoz M, Delgado E, Thomson MM, Contreras G, Pedreira JD, Real RR, de Parga EV, Medrano L, Taboada JA, Nájera R, Agulla A, Mariño A, López-Calvo S, Pedreira JD, Aguilera A, Losada E, Prieto A, Corredoira J, López- Alvarez MJ, Rodríguez A, Bustillo M, García-Costa J, Fernández-Rodríguez R, Rodríguez R, Miralles C, Ocampo A, Rodríguez-Real R, Díz-Aren J, de Castro RO, Morano LE, Pérez-Rodríguez R, Rodríguez A, Torres J. High Incidence of Non-B and Recombinant HIV-1 Strains in Newly Diagnosed Patients in Galicia, Spain: Study of Genotypic Resistance. Antivir Ther 2003. [DOI: 10.1177/135965350300800413] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The objectives of this study are to describe the incidence of non-B and recombinant HIV-1 strains in newly diagnosed HIV-1 infections in Galicia, northwest of Spain, during a 2-year period (May 2000 to June 2002), and the frequency of resistance-associated mutations in reverse transcriptase (RT) and protease (PR) genes, analysing the polymorphisms more frequently detected in non-B and recombinant viruses. All newly diagnosed HIV-1-infected patients attending the nine public hospitals of the seven main cities of Galicia were included in this study. RT, PR and V3 regions from HIV-1 RNA plasma were amplified and sequenced, being the corrected sequences sent to the Stanford HIV RT and Protease Sequence Database. Nineteen of 85 patients (22.3%) were infected by non-B or recombinant viruses: three subtype C, two G, one F1, one Dpol/A1V3, five CRF02_AG, one CRF14_BG, five BGpol/BV3 and one UKpol/UV3 (U, unknown fragment). Eleven of these 19 patients (57.9%) were foreign individuals living in Galicia infected through heterosexual contact, and the other eight (42.1%) were Spanish intravenous drug users who had shared injection equipment. Five of 85 patients (5.9%), all infected with B subtype viruses, showed resistance-associated mutations in RT (M184V, M41L, L210W, T215Y/D and K219Q). In one patient (1.2%) infected with a subtype G strain, resistance-associated mutations in PR (K20I+M36I+M46I+V82I) were detected. In subtype B viruses resistance mutations in PR were not detected. Several polymorphisms in RT: D123S, Q174K, D177E, T200A, V245Q, and PR: I13V, K20I, M36I, R41K, H69K, L89M were detected more frequently in non-B and recombinants than in B strains ( P<0.01 to P<0.001). This study reports a high incidence (22.3%) of newly diagnosed patients infected by different non-B and recombinant HIV-1 strains, in a geographical area of Spain, showing also a high frequency of polymorphisms in RT and PR genes.
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Affiliation(s)
- Lucía Pérez-Alvarez
- Area de Patogenia Viral, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Rocío Carmona
- Area de Patogenia Viral, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Mercedes Muñoz
- Area de Patogenia Viral, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Elena Delgado
- Area de Patogenia Viral, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Michael M Thomson
- Area de Patogenia Viral, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Gerardo Contreras
- Area de Patogenia Viral, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - José D Pedreira
- Unidade de Seguimiento de VIH/SIDA, Hospital Juan Canalejo, La Coruña, Spain
| | | | - Elena Vázquez de Parga
- Area de Patogenia Viral, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Leandro Medrano
- Area de Patogenia Viral, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - José Antonio Taboada
- Consellería de Sanidade e Servicios Sociais, Dirección Xeral de Saúde Pública, Xunta de Galicia, Santiago de Compostela, Spain
| | - Rafael Nájera
- Area de Patogenia Viral, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - A Agulla
- Hospital Arquitecto Marcide, Ferrol (La Coruña)
| | - A Mariño
- Hospital Arquitecto Marcide, Ferrol (La Coruña)
| | | | | | - A Aguilera
- Complejo Hospitalario Universitario de Santiago (La Coruña)
| | - E Losada
- Complejo Hospitalario Universitario de Santiago (La Coruña)
| | - A Prieto
- Complejo Hospitalario Universitario de Santiago (La Coruña)
| | | | | | | | - M Bustillo
- Hospital Nuestra Señora del Cristal (Orense)
| | | | | | - R Rodríguez
- Hospital Provincial Santa María Madre (Orense)
| | | | - A Ocampo
- Hospital Xeral-Cíes, Vigo (Pontevedra)
| | | | | | | | - LE Morano
- Hospital Meixoeiro, Vigo (Pontevedra)
| | | | | | - J Torres
- Hospital Meixoeiro, Vigo (Pontevedra)
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Abstract
BACKGROUND To determine the prevalence of hepatitis C virus (HCV) genotypes in the area of El Ferrol, as well as their distribution according to risk factors. METHODS A total of 479 patients with hepatitis C were studied, including 254 with no known risk factors, 161 intravenous drug abusers (IVDA) and 64 with a history of blood transfusions. The presence of HCV RNA was studied by RT-PCR, and a reverse hybridization method (INNO-LiPA) was used for genotyping. RESULTS Genotype distribution was as follows: 1b, 269 (56.2%); 1a, 79 (16.5%); 3a, 59 (12.3%); 4c/4d, 35 (7.3%); 1, 19 (4.0%); 2a/2c, 3 (0.6%); 4, 3 (0.6%); 2b, 2 (0.4%). In 10 patients (2.1%) genotype could not be determined. In patients with no known risk factor, the predominant genotype was 1b, detected in 191 of the 254 patients in this group (75.2%). Distribution of genotypes was more varied in the IVDA group, with the most frequent being 1a in 49 (30.4%) and 3a in 43 (26.7%). In the 64 patients who had received transfusions, 1b was predominant, detected in 54 of 64 patients (84.4%). CONCLUSIONS The predominant HCV genotype in our area is 1b. Differences in genotype distribution were observed in the population groups studied, according to their underlying risk factors.
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Affiliation(s)
- Sonia Touceda
- Servicio de Microbiología. Complejo Hospitalario Arquitecto Marcide Profesor Novoa Santos. El Ferrol. La Coruña. Spain
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Ursua MI, Rodríguez-Mayo M, Fernández-Quintairos J, Domínguez D, Luaces J, Agulla A. [Meningococcal infection caused by Neisseria meningitidis serogroup C]. Enferm Infecc Microbiol Clin 1997; 15:369-72. [PMID: 9410050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND In recent years an increase has been observed in the prevalence of meningococcal infection by Neisseria meningitidis serogroup C and in the appearance of strains with moderate resistance to penicillin. PATIENTS AND METHODS A microbiologic study of the cases of meningococcal infection of serogroup C treated from 1995 to 1996 in the health care area of Ferrol (La Coruña, Spain) was carried out. RESULTS AND CONCLUSIONS Twenty-nine cases were detected in 1995 and 28 in 1996. Meningococcal infection was observed in patients ranging from 8 months to 21 years of age (mean 5.7 years). Distribution by sex was homogeneous. Two patients died. According to the clinical presentation, 11 were sepsis (38%), 4 meningitis (14%) and 14 both processes (48%). In 4 LCR samples, the analytical study was normal with posterior positive culture results. The detection of bacterial antigen by latex agglutination in CSF only detected 32% of the cases. MIC study determined that 11 strains (38%) presented moderate resistance to penicillin, 9 with a MIC of 0.12 microgram/ml, one with a MIC of 0.25 microgram/ml and another with a MIC of 0.5 microgram/ml. In all the cases the strains were sensitive to cefotaxime (MIC < or = 0.06 microgram/ml) and rifampicin (MIC < or = 0.5 microgram/ml). All the strains belonged to serogroup C serotype 2b, serosubtype P1.2,5. During the study period 4 additional cases of meningococcal disease by serogroup B were observed.
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Affiliation(s)
- M I Ursua
- Servicio de Microbiología, Complejo Hospitalario Arquitecto Marcide-Profesor Novoa Santos, Ferrol, La Coruña
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Agulla A, García A, Alvare MD. [Conjunctivitis caused by Aeromonas hydrophila]. Enferm Infecc Microbiol Clin 1997; 15:44-5. [PMID: 9147511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Sánchez-Tomás RA, Rodríguez-Mayo M, Domínguez D, Agulla A. [RIBA 3.0 in positive anti-HCV samples using enzyme immunoassay]. Enferm Infecc Microbiol Clin 1996; 14:127-8. [PMID: 8714166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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11
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Agulla A, Montes I. [Quinolone resistance of Escherichia coli strains isolated from urinary tract infections]. Enferm Infecc Microbiol Clin 1994; 12:322. [PMID: 8080877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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12
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Roldán A, Gutiérrez A, Jiménez J, Agulla A, Zancada F, Fernández A. [Listeria meningitis and HIV infection]. Rev Clin Esp 1991; 188:197-8. [PMID: 1784745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Although listeria monocytogenes is an opportunistic pathogen, infection by this bacteria is infrequent in AIDS patients. We were describe a case of L. monocytogenes meningitis in a patient infected by the human immunodeficiency virus (HIV). Literature is reviewed, and the pathogenesis of infection by this bacteria and its relation to AIDS is discussed.
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Affiliation(s)
- A Roldán
- Servicio de Medicina Interna, Hospital Virgen del Puerto, Plasencia, Cáceres
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Ladrón de Guevara C, Pérez-Pomata MT, Agulla A, Merino FJ, Villasante PA, Velasco AC. Recovery of Campylobacter from human faeces stored at 4 degrees C. Epidemiol Infect 1989; 102:281-5. [PMID: 2703021 PMCID: PMC2249446 DOI: 10.1017/s0950268800029952] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Six hundred and thirteen fresh diarrhoeal faeces were inoculated on Skirrow blood agar (SK), on Preston blood free agar (PBF), and in Campy-thioglycolate broth (CT). After 24 h of storage at 4 degrees C, specimens were again inoculated on SK and PBF, and in Campylobacter enrichment broth (CEB). CT tubes were placed overnight at 4 degrees C. Plates and CEB tubes were incubated at 43 degrees C in microaerophilic conditions. A total of 68 specimens was positive for campylobacter on direct plating. Sixty-four of them were also recovered after subculturing from CT, and only 51 from CEB. Delayed inoculation of plates after storage of samples at 4 degrees C yielded 57 isolates. The storage of faeces at 4 degrees C for 24 h significantly reduces the number of campylobacter isolates. When samples are not plated immediately we recommend inoculating a CT tube maintained at 4 degrees C overnight as a holding medium.
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Garza Trasobares E, Villeta Caraballo E, Suárez de Parga JM, Segura Cabral JM, Agulla A. [Spontaneous bacterial peritonitis caused by Aeromonas hydrophila. Presentation of 2 cases]. Rev Esp Enferm Apar Dig 1987; 72:743-4. [PMID: 3438545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Villasante PA, Agulla A, Merino FJ, Pérez T, Ladrón de Guevara C, Velasco AC. Rapid automated method for screening of enteric pathogens from stool specimens. J Clin Microbiol 1987; 25:584-5. [PMID: 3553230 PMCID: PMC266004 DOI: 10.1128/jcm.25.3.584-585.1987] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A total of 800 colonies suggestive of Salmonella, Shigella, or Yersinia species isolated on stool differential agar media were inoculated onto both conventional biochemical test media (triple sugar iron agar, urea agar, and phenylalanine agar) and Entero Pathogen Screen cards of the AutoMicrobic system (Vitek Systems, Inc., Hazelwood, Mo.). Based on the conventional tests, the AutoMicrobic system method yielded the following results: 587 true-negatives, 185 true-positives, 2 false-negatives, and 26 false-positives (sensitivity, 99%; specificity, 96%). Both true-positive and true-negative results were achieved considerably earlier than false results (P less than 0.001). The Entero Pathogen Screen card method is a fast, easy, and sensitive method for screening for Salmonella, Shigella, or Yersinia species. The impossibility of screening for oxidase-positive pathogens is a minor disadvantage of this method.
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Saz JV, Beltrán M, Díaz A, Agulla A, Merino FJ, Villasante PA, Velasco AC. Enzyme-linked immunosorbent assay for diagnosis of brucellosis. Eur J Clin Microbiol 1987; 6:71-4. [PMID: 3569256 DOI: 10.1007/bf02097200] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The performance of an ELISA for detection of total antibodies to Brucella spp. was compared with that of the Rose Bengal, standard agglutination and Coombs test in the diagnosis of brucellosis. Sera tested were from 208 patients from whom Brucella melitensis had been isolated, 177 patients with significant results in at least two conventional tests, and 107 patients with fever from whom no Brucella spp. had been isolated and in whom all conventional tests were negative. ELISA was the most sensitive test (97%), showing greater specificity (96%) and good predictive positive and negative values (98% and 94% respectively). ELISA was the only positive test in 6% of patients in whom brucellosis had been confirmed by culture.
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Agulla A, Merino FJ, Villasante PA, Saz JV, Díaz A, Velasco AC. Evaluation of four enrichment media for isolation of Campylobacter jejuni. J Clin Microbiol 1987; 25:174-5. [PMID: 3793873 PMCID: PMC265853 DOI: 10.1128/jcm.25.1.174-175.1987] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Diarrheal stool specimens were inoculated into the following media: alkaline peptone water (APW), Bruce-Zochowsky medium (BZ), Campylobacter enrichment broth (CEB), Campy-thio broth (CT), and Skirrow blood-agar (SK) plate. All media were incubated at 42 degrees C in microaerophilic conditions for 24 h. Afterwards, a new SK plate was inoculated from every liquid medium. Campylobacter jejuni was isolated from 43 of the 259 specimens when CT was used, from 45 when APW was used, from 46 when BZ was used, and from 46 when CEB was used; these totals include specimens that grew after enrichment only, on SK plates only, and both after enrichment and on SK plates. No significant differences were found between the isolates obtained with and without enrichment procedures.
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Merino FJ, Agulla A, Villasante PA, Díaz A, Saz JV, Velasco AC. Comparative efficacy of seven selective media for isolating Campylobacter jejuni. J Clin Microbiol 1986; 24:451-2. [PMID: 3760137 PMCID: PMC268933 DOI: 10.1128/jcm.24.3.451-452.1986] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Diarrheal stools from 263 patients were inoculated on seven selective media: Butzler selective medium, Blaser medium, Skirrow blood agar, Preston campylobacter selective medium, Preston campylobacter blood-free medium, Butzler Virion medium, and modified Preston medium (with amphotericin B [2 mg/liter]). A similar number of Campylobacter jejuni strains were isolated from all the media studied; nevertheless, the presence of competing fecal flora (FF) made the detection of suspect colonies difficult. Preston campylobacter blood-free medium with cefoperazone yielded the greatest number of C. jejuni isolations, and contaminating FF grew in only 9% of the plates showing C. jejuni growth; all the other media allowed the abundant growth of other FF, regardless of whether C. jejuni was isolated from them or not.
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