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Sabrià A, Gregori J, Garcia-Cehic D, Guix S, Pumarola T, Manzanares-Laya S, Caylà JA, Bosch A, Quer J, Pintó RM. Evidence for positive selection of hepatitis A virus antigenic variants in vaccinated men-having-sex-with men patients: Implications for immunization policies. EBioMedicine 2018; 39:348-357. [PMID: 30472089 PMCID: PMC6354442 DOI: 10.1016/j.ebiom.2018.11.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 11/13/2018] [Accepted: 11/13/2018] [Indexed: 01/23/2023] Open
Abstract
Background A huge outbreak in the men-having-sex-with-men (MSM) has hit Europe during the years 2016–2018. Outbreak control has been hampered by vaccine shortages in many countries, and to minimize their impact, reduction of antigen doses has been implemented. However, these measures may have consequences on the evolution of hepatitis A virus (HAV), leading to the emergence of antigenic variants. Cases in vaccinated MSM patients have been detected in Barcelona, opening the possibility to study HAV evolution under immune pressure. Methods We performed deep-sequencing analysis of ten overlapping fragments covering the complete capsid coding region of HAV. A total of 14578255 reads were obtained and used for the analysis of virus evolution in vaccinated versus non-vaccinated patients. We estimated maximum and minimum mutation frequencies, and Shannon entropy in the quasispecies of each patient. Non-synonymous (NSyn) mutations affecting residues exposed in the capsid surface were located, with respect to epitopes, using the recently described crystal structure of HAV, as an indication of its potential role in escaping to the effect of vaccines. Findings HAV evolution at the quasispecies level, in non-vaccinated and vaccinated patients, revealed higher diversity in epitope-coding regions of the vaccinated group. Although amino acid replacements occurring in and around the epitopes were observed in both groups, their abundance was significantly higher in the quasispecies of vaccinated patients, indicating ongoing processes of fixation. Interpretation Our data suggest positive selection of antigenic variants in some vaccinated patients, raising concerns for new vaccination polices directed to the MSM group.
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Affiliation(s)
- Aurora Sabrià
- Enteric Virus Laboratory, Department of Genetics, Microbiology and Statistics, School of Biology, Institute of Nutrition and Food Safety, Campus Torribera, University of Barcelona, Barcelona, Spain
| | - Josep Gregori
- Liver Unit, Internal Medicine Hospital Vall d'Hebron, Autonomous University of Barcelona, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain; Roche Diagnostics, S.L., Sant Cugat del Vallés, Barcelona, Spain
| | - Damir Garcia-Cehic
- Liver Unit, Internal Medicine Hospital Vall d'Hebron, Autonomous University of Barcelona, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd) del Instituto de Salud Carlos III, Madrid, Spain
| | - Susana Guix
- Enteric Virus Laboratory, Department of Genetics, Microbiology and Statistics, School of Biology, Institute of Nutrition and Food Safety, Campus Torribera, University of Barcelona, Barcelona, Spain
| | - Tomàs Pumarola
- Virology Unit, Microbiology Department, Hospital Vall d'Hebron, Autonomous University of Barcelona, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain
| | - Sandra Manzanares-Laya
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBEResp) del Instituto de Salud Carlos III, Madrid, Spain
| | - Joan A Caylà
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBEResp) del Instituto de Salud Carlos III, Madrid, Spain
| | - Albert Bosch
- Enteric Virus Laboratory, Department of Genetics, Microbiology and Statistics, School of Biology, Institute of Nutrition and Food Safety, Campus Torribera, University of Barcelona, Barcelona, Spain
| | - Josep Quer
- Liver Unit, Internal Medicine Hospital Vall d'Hebron, Autonomous University of Barcelona, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd) del Instituto de Salud Carlos III, Madrid, Spain.
| | - Rosa M Pintó
- Enteric Virus Laboratory, Department of Genetics, Microbiology and Statistics, School of Biology, Institute of Nutrition and Food Safety, Campus Torribera, University of Barcelona, Barcelona, Spain.
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Garriga C, Manzanares-Laya S, García de Olalla P, Gorrindo P, Lens S, Solà R, Martínez-Rebollar M, Laguno M, Navarro J, Torras X, Gurguí M, Barberá MJ, Quer J, Masdeu E, Simón P, Ros M, de Andrés A, Caylà JA. Evolution of acute hepatitis C virus infection in a large European city: Trends and new patterns. PLoS One 2017; 12:e0187893. [PMID: 29135988 PMCID: PMC5685589 DOI: 10.1371/journal.pone.0187893] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 10/27/2017] [Indexed: 12/15/2022] Open
Abstract
The aims of this study were to describe the evolution of acute hepatitis C virus (HCV) infections since 2004 and to determine its associated factors. Acute HCV infections diagnosed in Barcelona from 2004 to 2015 were included. Incidence ratios (IR) were then estimated for sex and age groups. Cases were grouped between 2004-2005, 2006-2011 and 2012-2015, and their incidence rate ratios (IRR) were calculated. In addition, risk factors for acute HCV infection were identified using multinomial logistic regression for complete, available and multiple imputed data. 204 new HCV cases were identified. Two peaks of higher IR of acute HCV infection in 2005 and 2013 were observed. Men and those aged 35-54 had higher IR. IRR for men was 2.9 times greater than in women (95% confidence intervals (CI): 1.8 ‒ 4.7). Factors related to the period 2012-2015 (versus 2006-2011) were: a) sexual risk factor for transmission versus nosocomial (relative-risk ratio (RRR): 13.0; 95% CI: 2.3 ‒ 72.1), b) higher educated versus lower (RRR: 5.4; 95% CI: 1.6 ‒ 18.7), and c) HIV co-infected versus not HIV-infected (RRR: 53.1; 95% CI: 5.7 ‒ 492.6). This is one of the few studies showing IR and RRRs of acute HCV infections and the first focused on a large city in Spain. Sexual risk for transmission between men, higher educational level and HIV co-infection are important factors for understanding current HCV epidemic. There has been a partial shift in the pattern of the risk factor for transmission from nosocomial to sexual.
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Affiliation(s)
- César Garriga
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain
- Spanish Field Epidemiology Training Programme (FETP/PEAC), National Centre for Epidemiology, Instituto de Salud Carlos III, Madrid, Spain
- * E-mail: (CG); (SM)
| | - Sandra Manzanares-Laya
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- * E-mail: (CG); (SM)
| | - Patricia García de Olalla
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Pilar Gorrindo
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain
| | - Sabela Lens
- Liver Unit, Hospital Clínic, Barcelona. IDIBAPS, Barcelona, Spain
- CIBER of Hepatic and Digestive Diseases (CIBERehd), Madrid, Spain
| | - Ricard Solà
- Internal Medicine-Infectious Diseases, Hospital del Mar, Barcelona, Spain
| | - María Martínez-Rebollar
- Hospital Clinic- August Pi i Sunyer Biomedical Research Institute, University of Barcelona, Barcelona, Spain
| | - Montserrat Laguno
- Hospital Clinic- August Pi i Sunyer Biomedical Research Institute, University of Barcelona, Barcelona, Spain
| | - Jordi Navarro
- Infectious Diseases, Hospital Vall de Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Xavier Torras
- CIBER of Hepatic and Digestive Diseases (CIBERehd), Madrid, Spain
- Department of Gastroenterology, Hospital de la Santa Creu i Sant Pau, CIBERehd, Barcelona, Spain
| | - Mercè Gurguí
- Infectious Diseases Unit, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - María-Jesús Barberá
- Sexually Transmitted Infections Unit, Hospital Vall de Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Josep Quer
- Liver Unit, Internal Medicine, Laboratory of Malalties Hepàtiques, Vall d'Hebron Institut de Recerca-Hospital Universitari Vall d´Hebron, (VHIR-HUVH), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Eva Masdeu
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain
| | - Pere Simón
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain
| | - Miriam Ros
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain
| | - Anna de Andrés
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain
| | - Joan A. Caylà
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
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Valero N, de Simón M, Gallés P, Izquierdo N, Arimon J, González R, Manzanares-Laya S, Avellanes I, Gómez A. Street Cleaning Trucks as Potential Sources of Legionella pneumophila. Emerg Infect Dis 2017; 23:1880-1882. [PMID: 29048281 PMCID: PMC5652444 DOI: 10.3201/eid2311.161390] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In 2015, Legionnaires’ disease was diagnosed in a street cleaning worker. We found Legionella pneumophila serogroup 1 in the water and internal foam from the tanks of 2 trucks used by the worker during the incubation period. The internal foam was removed, and a Legionella prevention program was implemented.
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Parrón I, Planas C, Godoy P, Manzanares-Laya S, Martínez A, Sala MR, Minguell S, Torner N, Jané M, Domínguez A. Effectiveness of hepatitis A vaccination as post-exposure prophylaxis. Hum Vaccin Immunother 2017; 13:423-427. [PMID: 27925847 PMCID: PMC5328215 DOI: 10.1080/21645515.2017.1264798] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Hepatitis A (HA) has been a vaccine-preventable disease since 1995. In Catalonia, a universal combined hepatitis A+B vaccination program of preadolescents was initiated at the end of 1998. However, outbreaks are reported each year and post-exposure prophylaxis (PEP) with hepatitis A virus (HAV) vaccine or immunoglobulin (IG) is recommended to avoid cases. The aim of this study was to assess the effectiveness of HAV vaccine and IG in preventing hepatitis A cases in susceptible exposed people. A retrospective cohort study of contacts of HA cases involved in outbreaks reported in Catalonia between January 2006 and December 2012 was made. The rate ratios and 95% confidence intervals (CI) of HA in susceptible contacts receiving HAV or IG versus those without PEP were calculated. There were 3550 exposed persons in the outbreaks studied: 2381 received one dose of HAV vaccine (Hepatitis A or hepatitis A+B), 190 received IG, and 611 received no PEP. 368 exposed subjects received one dose of HAV vaccine and IG simultaneously and were excluded from the study. The effectiveness of PEP was 97.6% (95% CI 96.2-98.6) for HAV vaccine and 98.3% (95% CI 91.3-99.9) for IG; the differences were not statistically significant (p = 0.36). The elevated effectiveness of HAV vaccination for PEP in HA outbreaks, similar to that of IG, and the long-term protection of active immunization, supports the preferential use of vaccination to avoid secondary cases.
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Affiliation(s)
- Ignasi Parrón
- Agència de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
| | - Caritat Planas
- Agència de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
| | - Pere Godoy
- Agència de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
- CIBER Epidemiología y Salud pública (CIBERESP), Madrid, Spain
| | - Sandra Manzanares-Laya
- CIBER Epidemiología y Salud pública (CIBERESP), Madrid, Spain
- Agència de Salut Pública de Barcelona, Barcelona, Spain
| | - Ana Martínez
- Agència de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
- CIBER Epidemiología y Salud pública (CIBERESP), Madrid, Spain
| | - Maria Rosa Sala
- Agència de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
| | - Sofia Minguell
- Agència de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
| | - Nuria Torner
- Agència de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
- CIBER Epidemiología y Salud pública (CIBERESP), Madrid, Spain
- Departament de Medicina. Universitat de Barcelona, Barcelona, Spain
| | - Mireia Jané
- Agència de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
- CIBER Epidemiología y Salud pública (CIBERESP), Madrid, Spain
| | - Angela Domínguez
- CIBER Epidemiología y Salud pública (CIBERESP), Madrid, Spain
- Departament de Medicina. Universitat de Barcelona, Barcelona, Spain
| | - the Working Group for the Study of Hepatitis A in Catalonia
- Agència de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
- CIBER Epidemiología y Salud pública (CIBERESP), Madrid, Spain
- Agència de Salut Pública de Barcelona, Barcelona, Spain
- Departament de Medicina. Universitat de Barcelona, Barcelona, Spain
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Godoy P, Broner S, Manzanares-Laya S, Martínez A, Parrón I, Planas C, Sala-Farré MR, Minguell S, de Olalla PG, Jané M, Dominguez A. Outbreaks of hepatitis A associated with immigrants travelling to visit friends and relatives. J Infect 2015; 72:112-5. [PMID: 26404744 DOI: 10.1016/j.jinf.2015.09.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 09/08/2015] [Accepted: 09/13/2015] [Indexed: 11/16/2022]
Affiliation(s)
- Pere Godoy
- Agencia de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.
| | - Sonia Broner
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Sandra Manzanares-Laya
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Agencia de Salut Pública de Barcelona, Barcelona, Spain
| | - Ana Martínez
- Agencia de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Ignasi Parrón
- Agencia de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
| | - Caritat Planas
- Agencia de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
| | | | - Sofia Minguell
- Agencia de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
| | - Patricia Garcia de Olalla
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Agencia de Salut Pública de Barcelona, Barcelona, Spain
| | - Mireia Jané
- Agencia de Salut Pública de Catalunya, Generalitat de Catalunya, Barcelona, Spain
| | - Angela Dominguez
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Departamento de Salud Pública, Universidad de Barcelona, Barcelona, Spain
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Solano R, Rius C, Simón P, Manzanares-Laya S, Ros M, Toledo D, Domíngez À, Caylà JA. Evaluation of reported cases of pertussis: epidemiological study in a large city in Spain. J Med Microbiol 2014; 63:1688-1695. [DOI: 10.1099/jmm.0.079756-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
Abstract
We retrospectively analysed the incidence rate of reported cases of pertussis in Barcelona during 2009–2012 according to age, sex, type of medical centre and vaccination status. We included 748 confirmed or suspected cases, 613 (82.0 %) of which were confirmed by laboratory testing and the remaining 135 (18.0 %) by epidemiological evidence. The highest reported incidence of pertussis was amongst <1 year olds [96.1 per 100 000 person-years, 95 % confidence interval (CI): 84.3–109.1]. The majority of confirmed and suspected cases were reported in 2011 and 2012, and the total incidence (confirmed or suspected) was 6.3 (95 % CI: 5.6–6.9) and 4.2 (95 % CI: 3.6–4.7) per 100 000 person-years, respectively. Incidence increased significantly (P = 0.001) in 2011–2012 compared with 2009. Most confirmed cases occurred in children <1 year old (87.9 %). Cases were confirmed by real-time (RT)-PCR (87.5 %; 95 % CI: 81.3–87.6) and bacterial culture (13.7 %; 95 % CI: 11.0–17.1). We recommend performing RT-PCR in suspected cases with no epidemiological link to a confirmed case.
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Affiliation(s)
- Rubén Solano
- Epidemiology Department, Barcelona Public Health Agency, Barcelona, Spain
- CIBER Epidemiology and Public Health, Carlos III Health Institute (CIBERESP), Madrid, Spain
| | - Cristina Rius
- Epidemiology Department, Barcelona Public Health Agency, Barcelona, Spain
- CIBER Epidemiology and Public Health, Carlos III Health Institute (CIBERESP), Madrid, Spain
| | - Pere Simón
- Epidemiology Department, Barcelona Public Health Agency, Barcelona, Spain
| | | | - Miriam Ros
- Epidemiology Department, Barcelona Public Health Agency, Barcelona, Spain
| | - Diana Toledo
- Department of Public Health, University of Barcelona, Barcelona, Spain
| | - Àngela Domíngez
- Department of Public Health, University of Barcelona, Barcelona, Spain
- CIBER Epidemiology and Public Health, Carlos III Health Institute (CIBERESP), Madrid, Spain
| | - Joan A. Caylà
- Epidemiology Department, Barcelona Public Health Agency, Barcelona, Spain
- CIBER Epidemiology and Public Health, Carlos III Health Institute (CIBERESP), Madrid, Spain
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Martínez A, Broner S, Sala MR, Manzanares-Laya S, Godoy P, Planas C, Minguell S, Torner N, Jané M, Domínguez A, For The Study Of The Immune Status In Health Care TWG, Hepatitis A In Catalonia FTSO. Changes in the epidemiology of hepatitis A outbreaks 13 years after the introduction of a mass vaccination program. Hum Vaccin Immunother 2014; 11:192-7. [PMID: 25483535 DOI: 10.4161/hv.35861] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
A hepatitis A+B vaccine vaccination program of 12-year-olds was introduced in Catalonia in 1998. The aim of this study was to investigate the evolution of hepatitis A outbreaks in Catalonia and estimate the preventable fraction of cases associated with outbreaks as a measure of the impact of the vaccination program. Hepatitis A outbreaks reported to the Health Department between 1991 and 2012 were analyzed. The incidence rates of outbreaks, outbreak-associated cases and hospitalizations were calculated. The preventable fraction (PF) and 95% confidence intervals (CI) were estimated for the whole study period (pre-vaccination and post-vaccination) and the post-vaccination period. One-hundred-eight (108) outbreaks (rate of 2.21 per 10(6) persons-year) were reported in the pre-vaccination period and 258 outbreaks (rate of 2.82 per 10(6) persons-year) in the post-vaccination period. The rate of cases associated with outbreaks was 1.52 per 10(5) persons-year in the pre-vaccination period and 1.28 per 10(5) persons-year in the post-vaccination period. Hospitalization rates were 0.08 and 0.75 per 10(6) persons-year, respectively. The number of person-to-person outbreaks whose index case was a school contact decreased in the post-vaccination period (aOR 2.72; 95%CI 1.35-5.48), but outbreaks whose index case was a man who has sex with men (MSM) or an immigrant increased. The PF of all outbreak-associated cases was 6.46% (95%CI 3.11-9.82) and the highest PF was in the 15-24 years age group (42.53%; 95%CI 29.30-55.75). In the 0-4 years age group, the PF was 18.35% (95%CI 9.59-27.11), suggesting a protective herd effect in unvaccinated subjects. Vaccination of immigrants traveling to endemic countries and MSM should be reinforced.
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Affiliation(s)
- Ana Martínez
- a Public Health Agency of Catalonia; Generalitat of Catalonia, Spain
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Mozalevskis A, Manzanares-Laya S, García de Olalla P, Moreno A, Jacques-Aviñó C, Caylà JA. Can we rely on the antiretroviral treatment as the only means for human immunodeficiency virusprevention? A Public Health perspective. Enferm Infecc Microbiol Clin 2014; 33:e63-8. [PMID: 25444036 DOI: 10.1016/j.eimc.2014.07.014] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 07/25/2014] [Accepted: 07/31/2014] [Indexed: 11/29/2022]
Abstract
The evidence that supports the preventive effect of combination antiretroviral treatment (cART) in HIV sexual transmission suggested the so-called 'treatment as prevention' (TAP) strategy as a promising tool for slowing down HIV transmission. As the messages and attitudes towards condom use in the context of TAP appear to be somehow confusing, the aim here is to assess whether relying on cART alone to prevent HIV transmission can currently be recommended from the Public Health perspective. A review is made of the literature on the effects of TAP strategy on HIV transmission and the epidemiology of other sexual transmitted infections (STIs) in the cART era, and recommendations from Public Health institutions on the TAP as of February 2014. The evolution of HIV and other STIs in Barcelona from 2007 to 2012 has also been analysed. Given that the widespread use of cART has coincided with an increasing incidence of HIV and other STIs, mainly amongst men who have sex with men, a combination and diversified prevention methods should always be considered and recommended in counselling. An informed decision on whether to stop using condoms should only be made by partners within stable couples, and after receiving all the up-to-date information regarding TAP. From the public health perspective, primary prevention should be a priority; therefore relying on cART alone is not a sufficient strategy to prevent new HIV and other STIs.
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Affiliation(s)
- Antons Mozalevskis
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain; National Centre of Epidemiology, Institute of Health Carlos III, Madrid, Spain; European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden.
| | | | - Patricia García de Olalla
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Antonio Moreno
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | | | - Joan A Caylà
- Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
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9
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Moreno A, Manzanares-Laya S, Razquin E, Guix S, Domínguez Á, de Simón M. [Norovirus outbreaks in geriatric centers: importance of an early detection]. Med Clin (Barc) 2014; 144:204-6. [PMID: 25178545 DOI: 10.1016/j.medcli.2014.05.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 02/25/2014] [Revised: 05/15/2014] [Accepted: 05/22/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVES Acute gastroenteritis (AGE) outbreaks of norovirus (NV) occur frequently in nursing homes. Gastrointestinal disorders and degree of dependence of residents complicate early detection and implementation of control measures. Our study's aim was to determine the incidence of NV in elderly care centers, transmission mechanisms and circulating genotypes. PATIENTS AND METHODS An epidemiological study of NV outbreaks reported to the Public Health Agency of Barcelona 2010-2012 was performed. The attack rate, outbreak duration, symptomatology and identified NV genotypes were analyzed. RESULTS In total, 27 NV outbreaks were reported and 5 (18.5%) occurred in nursing homes (95 cases with lethality of 1.05%). The etiology of one of the five outbreaks could not be confirmed because of late notification. Four of the outbreaks were attributed to person-to-person transmission. The outbreak duration and attack rate among resident person-to-person transmission were significantly higher compared to common exposure transmission. Genotype GII.4 was predominant. CONCLUSIONS The identification of critical points and the use of clinical alarm systems could prevent and minimize the spreading and severity of these outbreaks.
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Affiliation(s)
- Antonio Moreno
- Agencia de Salud Pública de Barcelona (ASPB), Barcelona, España; CIBER Epidemiología y Salud Pública CIBERESP, España.
| | | | | | - Susana Guix
- Grupo de virus entéricos, Departamento de Microbiología, Universidad de Barcelona, Barcelona, España
| | - Ángela Domínguez
- CIBER Epidemiología y Salud Pública CIBERESP, España; Departamento de Salud Pública de la Universidad de Barcelona, Barcelona, España
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Manzanares-Laya S, Burón A, Murta-Nascimento C, Servitja S, Castells X, Macià F. [Development and validation of an algorithm to identify cancer recurrences from hospital data bases]. ACTA ACUST UNITED AC 2014; 29:237-44. [PMID: 24985242 DOI: 10.1016/j.cali.2014.05.004] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 05/14/2014] [Accepted: 05/15/2014] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Hospital cancer registries and hospital databases are valuable and efficient sources of information for research into cancer recurrences. The aim of this study was to develop and validate algorithms for the detection of breast cancer recurrence. METHODS A retrospective observational study was conducted on breast cancer cases from the cancer registry of a third level university hospital diagnosed between 2003 and 2009. Different probable cancer recurrence algorithms were obtained by linking the hospital databases and the construction of several operational definitions, with their corresponding sensitivity, specificity, positive predictive value and negative predictive value. RESULTS A total of 1,523 patients were diagnosed of breast cancer between 2003 and 2009. A request for bone gammagraphy after 6 months from the first oncological treatment showed the highest sensitivity (53.8%) and negative predictive value (93.8%), and a pathology test after 6 months after the diagnosis showed the highest specificity (93.8%) and negative predictive value (92.6%). The combination of different definitions increased the specificity and the positive predictive value, but decreased the sensitivity. CONCLUSIONS Several diagnostic algorithms were obtained, and the different definitions could be useful depending on the interest and resources of the researcher. A higher positive predictive value could be interesting for a quick estimation of the number of cases, and a higher negative predictive value for a more exact estimation if more resources are available. It is a versatile and adaptable tool for other types of tumors, as well as for the needs of the researcher.
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Affiliation(s)
- S Manzanares-Laya
- Servei d'Epidemiologia i Avaluació, Hospital del Mar-Parc de Salut Mar, Barcelona, España; Unitat Docent de Medicina Preventiva i Salut Pública, H. MAR-UPF-ASPB, Barcelona, España
| | - A Burón
- Servei d'Epidemiologia i Avaluació, Hospital del Mar-Parc de Salut Mar, Barcelona, España; IMIM Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, España; Red de Investigación en Servicios de Salud en Enfermedades Crónicas, REDISSEC, Barcelona, España.
| | - C Murta-Nascimento
- Servei d'Epidemiologia i Avaluació, Hospital del Mar-Parc de Salut Mar, Barcelona, España; IMIM Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, España; Red de Investigación en Servicios de Salud en Enfermedades Crónicas, REDISSEC, Barcelona, España
| | - S Servitja
- IMIM Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, España; Servei d'Oncologia, Hospital del Mar-Parc de Salut Mar, Barcelona, España
| | - X Castells
- Servei d'Epidemiologia i Avaluació, Hospital del Mar-Parc de Salut Mar, Barcelona, España; IMIM Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, España; Red de Investigación en Servicios de Salud en Enfermedades Crónicas, REDISSEC, Barcelona, España
| | - F Macià
- Servei d'Epidemiologia i Avaluació, Hospital del Mar-Parc de Salut Mar, Barcelona, España; Unitat Docent de Medicina Preventiva i Salut Pública, H. MAR-UPF-ASPB, Barcelona, España; IMIM Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, España; Red de Investigación en Servicios de Salud en Enfermedades Crónicas, REDISSEC, Barcelona, España
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Culqui DR, Manzanares-Laya S, Van Der Sluis SL, Fanlo AA, Comas RB, Rossi M, Caylá JA. Group A β-hemolytic streptococcal pharyngotonsillitis outbreak. Rev Saude Publica 2014; 48:322-5. [PMID: 24897054 PMCID: PMC4206151 DOI: 10.1590/s0034-8910.2014048005091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 12/09/2013] [Indexed: 11/22/2022] Open
Abstract
The aim was to describe an outbreak of group A β-hemolytic streptococcal
pharyngotonsillitis in health care professionals. This is a cross-sectional
descriptive study of 17 clients who dined at the same table in a restaurant in
Barcelona in July 2012. The frequency, timing and severity of symptoms were
analyzed, as were demographic variables and others concerning the food ingested.
The attack rate was 58.8%. Six of the 10 clients were positive for group A
β-hemolytic streptococcal. Six of the 13 individuals who handled the
food involved in the dinner had symptoms. No association was identified with the
food consumed. There is epidemiological evidence of foodborne group A
β-hemolytic streptococcal transmission, but respiratory transmission
could not be ruled out.
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Affiliation(s)
- Dante R Culqui
- Centro Nacional de Epidemiología, Instituto de Salud Carlos III, Madrid, España
| | | | | | - Albert Anton Fanlo
- Instituto de Seguridad Alimentaria, Agencia de Salud Pública de Barcelona, Barcelona, España
| | - Rosa Bartolomé Comas
- Servicio de Microbiología, Hospital Universitario Vall de Hebrón, Barcelona, España
| | - Marcello Rossi
- Laboratorio de Arbovirus y Enfermedades Víricas Importadas, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, España
| | - Joán A Caylá
- Servicio de Epidemiología, Agencia de Salud Pública de Barcelona, Barcelona, España
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