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Díaz-Dinamarca DA, Díaz P, Barra G, Puentes R, Arata L, Grossolli J, Riveros-Rodriguez B, Ardiles L, Santelises J, Vasquez-Saez V, Escobar DF, Soto D, Canales C, Díaz J, Lamperti L, Castillo D, Urra M, Zuñiga F, Ormazabal V, Nova-Lamperti E, Benítez R, Rivera A, Cortes CP, Valenzuela MT, García-Escorza HE, Vasquez AE. Humoral immunity against SARS-CoV-2 evoked by heterologous vaccination groups using the CoronaVac (Sinovac) and BNT162b2 (Pfizer/BioNTech) vaccines in Chile. Front Public Health 2023; 11:1229045. [PMID: 37693706 PMCID: PMC10483147 DOI: 10.3389/fpubh.2023.1229045] [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: 05/25/2023] [Accepted: 07/27/2023] [Indexed: 09/12/2023] Open
Abstract
Introduction Severe acute respiratory syndrome virus 2 (SARS-CoV-2) has caused over million deaths worldwide, with more than 61,000 deaths in Chile. The Chilean government has implemented a vaccination program against SARS-CoV-2, with over 17.7 million people receiving a complete vaccination scheme. The final target is 18 million individuals. The most common vaccines used in Chile are CoronaVac (Sinovac) and BNT162b2 (Pfizer-Biotech). Given the global need for vaccine boosters to combat the impact of emerging virus variants, studying the immune response to SARS-CoV-2 is crucial. In this study, we characterize the humoral immune response in inoculated volunteers from Chile who received vaccination schemes consisting of two doses of CoronaVac [CoronaVac (2x)], two doses of CoronaVac plus one dose of BNT162b2 [CoronaVac (2x) + BNT162b2 (1x)], and three doses of BNT162b2 [BNT162b2 (3x)]. Methods We recruited 469 participants from Clínica Dávila in Santiago and the Health Center Víctor Manuel Fernández in the city of Concepción, Chile. Additionally, we included participants who had recovered from COVID-19 but were not vaccinated (RCN). We analyzed antibodies, including anti-N, anti-S1-RBD, and neutralizing antibodies against SARS-CoV-2. Results We found that antibodies against the SARS-CoV-2 nucleoprotein were significantly higher in the CoronaVac (2x) and RCN groups compared to the CoronaVac (2x) + BNT162b2 (1x) or BNT162b2 (3x) groups. However, the CoronaVac (2x) + BNT162b2 (1x) and BNT162b2 (3x) groups exhibited a higher concentration of S1-RBD antibodies than the CoronaVac (2x) group and RCN group. There were no significant differences in S1-RBD antibody titers between the CoronaVac (2x) + BNT162b2 (1x) and BNT162b2 (3x) groups. Finally, the group immunized with BNT162b2 (3x) had higher levels of neutralizing antibodies compared to the RCN group, as well as the CoronaVac (2x) and CoronaVac (2x) + BNT162b2 (1x) groups. Discussion These findings suggest that vaccination induces the secretion of antibodies against SARS-CoV-2, and a booster dose of BNT162b2 is necessary to generate a protective immune response. In the current state of the pandemic, these data support the Ministry of Health of the Government of Chile's decision to promote heterologous vaccination as they indicate that a significant portion of the Chilean population has neutralizing antibodies against SARS-CoV-2.
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Affiliation(s)
- Diego A. Díaz-Dinamarca
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Pablo Díaz
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Gisselle Barra
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Rodrigo Puentes
- Sección gestión de la información, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Loredana Arata
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Jonnathan Grossolli
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Boris Riveros-Rodriguez
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Luis Ardiles
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Julio Santelises
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
- Tecnología Medica, Facultad de Medicina, Clínica Alemana-Universidad del Desarrollo, Universidad del Desarrollo, Santiago, Chile
| | - Valeria Vasquez-Saez
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Daniel F. Escobar
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Daniel Soto
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Cecilia Canales
- Sección gestión de la información, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Janepsy Díaz
- Sección gestión de la información, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Liliana Lamperti
- Departamento de Bioquímica Clínica e Inmunología, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
| | - Daniela Castillo
- Departamento de Bioquímica Clínica e Inmunología, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
| | - Mychel Urra
- Departamento de Bioquímica Clínica e Inmunología, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
| | - Felipe Zuñiga
- Departamento de Bioquímica Clínica e Inmunología, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
| | - Valeska Ormazabal
- Departamento de Bioquímica Clínica e Inmunología, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
| | - Estefanía Nova-Lamperti
- Departamento de Bioquímica Clínica e Inmunología, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
| | - Rosana Benítez
- Unidad de investigación Clínica, Clínica Dávila, Santiago, Chile
| | - Alejandra Rivera
- Unidad de investigación Clínica, Clínica Dávila, Santiago, Chile
| | - Claudia P. Cortes
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Medicina, Universidad de Chile, Santiago, Chile
- Clínica Santa María, Santiago, Chile
| | | | | | - Abel E. Vasquez
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
- Tecnología Medica, Facultad de Medicina, Clínica Alemana-Universidad del Desarrollo, Universidad del Desarrollo, Santiago, Chile
- Departamento de Investigación, Postgrado y Educación Continua (DIPEC), Facultad de Ciencias de la Salud, Universidad del Alba, Santiago, Chile
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De Brun ML, Cosme B, Petersen M, Alvarez I, Folgueras-Flatschart A, Flatschart R, Panei CJ, Puentes R. Development of a droplet digital PCR assay for quantification of the proviral load of bovine leukemia virus. J Vet Diagn Invest 2022; 34:439-447. [PMID: 35369822 PMCID: PMC9254064 DOI: 10.1177/10406387221085581] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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] Open
Abstract
Droplet digital PCR (ddPCR) is a highly sensitive tool developed for the detection and quantification of short-sequence variants—a tool that offers unparalleled precision enabling measurement of smaller-fold changes. We describe here the use of ddPCR for the detection of Bovine leukemia virus (BLV) DNA provirus. Serum samples and whole blood from experimentally infected sheep and naturally infected cattle were analyzed through ddPCR to detect the BLV gp51 gene, and then compared with serologic and molecular tests. The ddPCR assay was significantly more accurate and sensitive than AGID, ELISA, nested PCR, and quantitative PCR. The limit of detection of ddPCR was 3.3 copies/µL, detecting positive experimentally infected sheep beginning at 6 d post-infection. The ddPCR methodology offers a promising tool for evaluating the BLV proviral load, particularly for the detection of low viral loads.
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Affiliation(s)
- María L. De Brun
- Instituto de Patobiología, Unidad de Microbiología, Facultad de Veterinaria–Universidad de la República, Montevideo, Uruguay
| | - Bruno Cosme
- Instituto Nacional de Metrología, Calidad y Tecnología (Inmetro), Rio de Janeiro, Brazil
| | - Marcos Petersen
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Virología e Innovaciones Tecnológicas (IVIT), Buenos Aires, Argentina
| | - Irene Alvarez
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Virología e Innovaciones Tecnológicas (IVIT), Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | | | - Roberto Flatschart
- Instituto Nacional de Metrología, Calidad y Tecnología (Inmetro), Rio de Janeiro, Brazil
| | - Carlos Javier Panei
- Laboratorio de Virología, Facultad de Ciencias Veterinarias, Universidad Nacional de la Plata (FCV-UNLP), La Plata, Argentina
| | - Rodrigo Puentes
- Instituto de Patobiología, Unidad de Microbiología, Facultad de Veterinaria–Universidad de la República, Montevideo, Uruguay
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Escobar DF, Díaz P, Díaz-Dinamarca D, Puentes R, Alarcón P, Alarcón B, Rodríguez I, Manzo RA, Soto DA, Lamperti L, Díaz J, García-Escorza HE, Vasquez AE. Validation of a Methodology for the Detection of Severe Acute Respiratory Syndrome Coronavirus 2 in Saliva by Real-Time Reverse Transcriptase-PCR. Front Public Health 2021; 9:743300. [PMID: 34926372 PMCID: PMC8674452 DOI: 10.3389/fpubh.2021.743300] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 10/28/2021] [Indexed: 11/30/2022] Open
Abstract
In January 2021, the Chilean city of Concepción experienced a second wave of coronavirus 2019 (COVID-19) while in early April 2021, the entire country faced the same situation. This outbreak generated the need to modify and validate a method for detecting severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in saliva, thereby expanding the capacity and versatility of testing for COVID-19. This study was conducted in February 2021 in the Chilean city of Concepción during which time, the town was under total quarantine. The study participants were mostly symptomatic (87.4%), not hospitalized, and attended care centers because of their health status rather than being asked by the researchers. People coming to the health center in Concepción to be tested for COVID-19 (via reverse transcriptase polymerase chain reaction [RT-PCR]) from a specimen of nasopharyngeal swab (NPS) were then invited to participate in this study. A total of 131 participants agreed to sign an informed consent and to provide saliva and NPS specimens to validate a method in terms of sensitivity, specificity, and statistical analysis of the cycle threshold (Ct) values from the RT-PCR. Calculations pertaining to the 127 participants who were ultimately included in the analysis showed sensitivity and specificity at 94.34% (95% CI: 84.34–98.82%) and 98.65% (95% CI: 92.70–99.97%), respectively. The saliva specimen showed a performance comparable to NPS as demonstrated by the diagnostic parameters. This RT-PCR method from the saliva specimen is a highly sensitive and specific alternative compared to the reference methodology, which uses the NPS specimen. This modified and validated method is intended for use in the in vitro diagnosis of SARS-CoV-2, which provides health authorities in Chile and local laboratories with a real testing alternative to RT-PCR from NPS.
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Affiliation(s)
- Daniel F Escobar
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Pablo Díaz
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Diego Díaz-Dinamarca
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Rodrigo Puentes
- Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Pedro Alarcón
- Laboratorio de Biología Molecular, Hospital Guillermo Grant Benavente, Concepción, Chile
| | - Bárbara Alarcón
- Laboratorio de Biología Molecular, Hospital Guillermo Grant Benavente, Concepción, Chile
| | - Iván Rodríguez
- Laboratorio de Biología Molecular, Hospital Guillermo Grant Benavente, Concepción, Chile
| | - Ricardo A Manzo
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Daniel A Soto
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Liliana Lamperti
- Laboratorio de Diagnóstico Molecular y Proteómica OMICs, Universidad de Concepción, Concepción, Chile
| | - Janepsy Díaz
- Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile
| | | | - Abel E Vasquez
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago, Chile.,Departamento de Investigación, Postgrado y Educación Continua (DIPEC), Facultad de Ciencias de la Salud, Universidad del Alba, Santiago, Chile
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Alonso M, Zabala C, Mansilla S, De Brun L, Martínez J, Garau M, Rivas G, Acosta C, Lens D, Cerisola A, Graña M, Naya H, Puentes R, Spangenberg L, Raggio V, Lemes A, Castro L, Quijano C. Blood cell respiration rates and mtDNA copy number: A promising tool for the diagnosis of mitochondrial disease. Mitochondrion 2021; 61:31-43. [PMID: 34536563 DOI: 10.1016/j.mito.2021.09.004] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 09/03/2021] [Accepted: 09/13/2021] [Indexed: 10/20/2022]
Abstract
Human mitochondrial diseases are a group of heterogeneous diseases caused by defects in oxidative phosphorylation, due to mutations in mitochondrial (mtDNA) or nuclear DNA. The diagnosis of mitochondrial disease is challenging since mutations in multiple genes can affect mitochondrial function, there is considerable clinical variability and a poor correlation between genotype and phenotype. Herein we assessed mitochondrial function in peripheral blood mononuclear cells (PBMCs) and platelets from volunteers without known metabolic pathology and patients with mitochondrial disease. Oxygen consumption rates were evaluated and respiratory parameters indicative of mitochondrial function were obtained. A negative correlation between age and respiratory parameters of PBMCs from control individuals was observed. Surprisingly, respiratory parameters of PBMCs normalized by cell number were similar in patients and young controls. Considering possible compensatory mechanisms, mtDNA copy number in PBMCs was quantified and an increase was found in patients with respect to controls. Hence, respiratory parameters normalized by mtDNA copy number were determined, and in these conditions a decrease in maximum respiration rate and spare respiratory capacity was observed in patients relative to control individuals. In platelets no decay was seen in mitochondrial function with age, while a reduction in basal, ATP-independent and ATP-dependent respiration normalized by cell number was detected in patients compared to control subjects. In summary, our results offer promising perspectives regarding the assessment of mitochondrial function in blood cells for the diagnosis of mitochondrial disease, minimizing the need for invasive procedures such as muscle biopsies, and for following disease progression and response to treatments.
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Affiliation(s)
- Martina Alonso
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Uruguay; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Uruguay
| | - Cristina Zabala
- Clínica Pediátrica A, Centro Hospitalario Pereira Rossell, Facultad de Medicina, Universidad de la República, Uruguay; Centro de Referencia Nacional en Defectos Congénitos y Enfermedades Raras (CRENADECER) del Banco de Previsión Social (BPS), Uruguay
| | - Santiago Mansilla
- Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Uruguay; Departamento de Métodos Cuantitativos, Facultad de Medicina, Universidad de la República, Uruguay
| | - Laureana De Brun
- Departamento de Patobiología, Unidad de Microbiología, Facultad de Veterinaria, Universidad de la República, Uruguay
| | - Jennyfer Martínez
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Uruguay; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Uruguay
| | - Mariela Garau
- Departamento de Métodos Cuantitativos, Facultad de Medicina, Universidad de la República, Uruguay
| | - Gabriela Rivas
- Cátedra y Departamento de Hemoterapia y Medicina Transfusional, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Uruguay
| | - Cecilia Acosta
- Cátedra y Departamento de Hemoterapia y Medicina Transfusional, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Uruguay
| | - Daniela Lens
- Departamento Básico de Medicina, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Uruguay
| | - Alfredo Cerisola
- Centro de Referencia Nacional en Defectos Congénitos y Enfermedades Raras (CRENADECER) del Banco de Previsión Social (BPS), Uruguay; Cátedra de Neuropediatría, Facultad de Medicina, Universidad de la República, Uruguay
| | - Martín Graña
- Unidad de Bioinformática, Institut Pasteur de Montevideo, Uruguay
| | - Hugo Naya
- Unidad de Bioinformática, Institut Pasteur de Montevideo, Uruguay; Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Uruguay
| | - Rodrigo Puentes
- Departamento de Patobiología, Unidad de Microbiología, Facultad de Veterinaria, Universidad de la República, Uruguay
| | | | - Víctor Raggio
- Departamento de Genética, Facultad de Medicina, Universidad de la República, Uruguay
| | - Aída Lemes
- Centro de Referencia Nacional en Defectos Congénitos y Enfermedades Raras (CRENADECER) del Banco de Previsión Social (BPS), Uruguay
| | - Laura Castro
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Uruguay; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Uruguay.
| | - Celia Quijano
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Uruguay; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Uruguay.
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De Brun L, Leites M, Furtado A, Campos F, Roehe P, Puentes R. Field Evaluation of Commercial Vaccines against Infectious Bovine Rhinotracheitis (Ibr) Virus Using Different Immunization Protocols. Vaccines (Basel) 2021; 9:vaccines9040408. [PMID: 33924141 PMCID: PMC8074307 DOI: 10.3390/vaccines9040408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/18/2021] [Accepted: 03/31/2021] [Indexed: 11/29/2022] Open
Abstract
Bovine alphaherpesvirus 1 is ubiquitous in cattle populations and is associated with several clinical syndromes, including respiratory disease, genital disease, infertility and abortions. Control of the virus in many parts of the world is achieved primarily through vaccination with either inactivated or live modified viral vaccines. The objective of this study was to evaluate the performance of four commercially available BoHV-1 vaccines commonly used in Central and South America. Animals were divided into eight groups and vaccinated on days 0 and 30. Groups 1 to 4 received two doses of four different BoHV-1 commercial vaccines (named A to D). Groups 5 and 6 received vaccine D plus a vaccine for either Clostridial or Food-and-Mouth-Disease (FMD), respectively. Group 7 received one dose of two different brands of reproductive vaccines. Serum samples were collected from all animals on days 0, 30 and 60 to evaluate neutralizing and isotype-specific (IgG1 and IgG2) antibodies. Of the four commercial vaccines evaluated, only vaccine A induced neutralizing antibodies to titers ≥ 1:8 in 13/15 (86%) of the animals 60 days post-vaccination. Levels of IgG2 antibody increased in all groups, except for group 2 after the first dose of vaccine B. These results show that only vaccine A induced significant and detectable levels of BoHV-1-neutralizing antibodies. The combination of vaccine D with Clostridial or FMD vaccines did not affect neutralizing antibody responses to BoHV-1. The antibody responses of three of the four commercial vaccines analyzed here were lower than admissible by vaccine A. These results may be from vaccination failure, but means to identify the immune signatures predictive of clinical protection against BoHV-1 in cattle should also be considered.
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Affiliation(s)
- Laureana De Brun
- Departamento de Patobiología, Facultad de Veterinaria, Universidad de la República, Montevideo 11600, Uruguay; (L.D.B.); (M.L.); (A.F.)
| | - Mauro Leites
- Departamento de Patobiología, Facultad de Veterinaria, Universidad de la República, Montevideo 11600, Uruguay; (L.D.B.); (M.L.); (A.F.)
| | - Agustín Furtado
- Departamento de Patobiología, Facultad de Veterinaria, Universidad de la República, Montevideo 11600, Uruguay; (L.D.B.); (M.L.); (A.F.)
| | - Fabricio Campos
- Laboratório de Bioinformática & Biotecnologia, Campus de Gurupi, Universidade Federal do Tocantins, Gurupi 77410-530, Brazil;
| | - Paulo Roehe
- Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rio Grande do Sul, Porto Alegre 90050-170, Brazil;
| | - Rodrigo Puentes
- Departamento de Patobiología, Facultad de Veterinaria, Universidad de la República, Montevideo 11600, Uruguay; (L.D.B.); (M.L.); (A.F.)
- Correspondence: ; Tel.: +598-2-1903 (int. 2510)
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Bennett JC, Hetrich MK, Garcia Quesada M, Sinkevitch JN, Deloria Knoll M, Feikin DR, Zeger SL, Kagucia EW, Cohen AL, Ampofo K, Brandileone MCC, Bruden D, Camilli R, Castilla J, Chan G, Cook H, Cornick JE, Dagan R, Dalby T, Danis K, de Miguel S, De Wals P, Desmet S, Georgakopoulou T, Gilkison C, Grgic-Vitek M, Hammitt LL, Hilty M, Ho PL, Jayasinghe S, Kellner JD, Kleynhans J, Knol MJ, Kozakova J, Kristinsson KG, Ladhani SN, MacDonald L, Mackenzie GA, Mad’arová L, McGeer A, Mereckiene J, Morfeldt E, Mungun T, Muñoz-Almagro C, Nuorti JP, Paragi M, Pilishvili T, Puentes R, Saha SK, Sahu Khan A, Savrasova L, Scott JA, Skoczyńska A, Suga S, van der Linden M, Verani JR, von Gottberg A, Winje BA, Yildirim I, Zerouali K, Hayford K. Changes in Invasive Pneumococcal Disease Caused by Streptococcus pneumoniae Serotype 1 Following Introduction of PCV10 and PCV13: Findings from the PSERENADE Project. Microorganisms 2021; 9:microorganisms9040696. [PMID: 33801760 PMCID: PMC8066231 DOI: 10.3390/microorganisms9040696] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/23/2021] [Accepted: 03/23/2021] [Indexed: 11/17/2022] Open
Abstract
Streptococcus pneumoniae serotype 1 (ST1) was an important cause of invasive pneumococcal disease (IPD) globally before the introduction of pneumococcal conjugate vaccines (PCVs) containing ST1 antigen. The Pneumococcal Serotype Replacement and Distribution Estimation (PSERENADE) project gathered ST1 IPD surveillance data from sites globally and aimed to estimate PCV10/13 impact on ST1 IPD incidence. We estimated ST1 IPD incidence rate ratios (IRRs) comparing the pre-PCV10/13 period to each post-PCV10/13 year by site using a Bayesian multi-level, mixed-effects Poisson regression and all-site IRRs using a linear mixed-effects regression (N = 45 sites). Following PCV10/13 introduction, the incidence rate (IR) of ST1 IPD declined among all ages. After six years of PCV10/13 use, the all-site IRR was 0.05 (95% credibility interval 0.04–0.06) for all ages, 0.05 (0.04–0.05) for <5 years of age, 0.08 (0.06–0.09) for 5–17 years, 0.06 (0.05–0.08) for 18–49 years, 0.06 (0.05–0.07) for 50–64 years, and 0.05 (0.04–0.06) for ≥65 years. PCV10/13 use in infant immunization programs was followed by a 95% reduction in ST1 IPD in all ages after approximately 6 years. Limited data availability from the highest ST1 disease burden countries using a 3 + 0 schedule constrains generalizability and data from these settings are needed.
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Affiliation(s)
- Julia C. Bennett
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA; (M.K.H.); (M.G.Q.); (J.N.S.); (S.L.Z.); (L.L.H.); (K.H.)
- Correspondence: (J.C.B.); (M.D.K.)
| | - Marissa K. Hetrich
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA; (M.K.H.); (M.G.Q.); (J.N.S.); (S.L.Z.); (L.L.H.); (K.H.)
| | - Maria Garcia Quesada
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA; (M.K.H.); (M.G.Q.); (J.N.S.); (S.L.Z.); (L.L.H.); (K.H.)
| | - Jenna N. Sinkevitch
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA; (M.K.H.); (M.G.Q.); (J.N.S.); (S.L.Z.); (L.L.H.); (K.H.)
| | - Maria Deloria Knoll
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA; (M.K.H.); (M.G.Q.); (J.N.S.); (S.L.Z.); (L.L.H.); (K.H.)
- Correspondence: (J.C.B.); (M.D.K.)
| | | | - Scott L. Zeger
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA; (M.K.H.); (M.G.Q.); (J.N.S.); (S.L.Z.); (L.L.H.); (K.H.)
| | - Eunice W. Kagucia
- KEMRI-Wellcome Trust Research Programme, Epidemiology and Demography Department, Centre for Geographic Medicine-Coast, P.O. Box 230-80108 Kilifi, Kenya; (E.W.K.); (J.A.S.)
| | - Adam L. Cohen
- World Health Organization, 1202 Geneva, Switzerland;
| | - Krow Ampofo
- Division of Pediatric Infectious Diseases, Department of Pediatrics, University of Utah Health Sciences Center, Salt Lake City, UT 84132, USA;
| | - Maria-Cristina C. Brandileone
- National Laboratory for Meningitis and Pneumococcal Infections, Center of Bacteriology, Institute Adolfo Lutz (IAL), São Paulo 01246-902, Brazil;
| | - Dana Bruden
- Arctic Investigations Program, Division of Preparedness and Emerging Infections, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Anchorage, AK 99508, USA;
| | - Romina Camilli
- Department of Infectious Diseases, Italian National Institute of Health (Istituto Superiore di Sanità, ISS), 00161 Rome, Italy;
| | - Jesús Castilla
- CIBER Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain; (J.C.); (C.M.-A.)
- Instituto de Salud Pública de Navarra—IdiSNA, 31003 Pamplona, Navarra, Spain
| | - Guanhao Chan
- Singapore Ministry of Health, Communicable Diseases Division, Singapore 308442, Singapore;
| | - Heather Cook
- Centre for Disease Control, Department of Health and Community Services, Darwin, NT 8000, Australia;
| | - Jennifer E. Cornick
- Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, Liverpool CH64 7TE, UK;
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Chichiri, P.O. Box 30096 Blantyre, Malawi
| | - Ron Dagan
- Faculty of Health Sciences, Ben-Gurion University of the Negev, 8410501 Beer-Sheva, Israel;
| | - Tine Dalby
- Bacteria, Parasites and Fungi, Statens Serum Institut, DK-2300 Copenhagen, Denmark;
| | - Kostas Danis
- Santé Publique France, the French National Public Health Agency, Saint Maurice CEDEX, 94415 Paris, France;
| | - Sara de Miguel
- Epidemiology Department, Dirección General de Salud Pública, 28009 Madrid, Spain;
| | - Philippe De Wals
- Department of Social and Preventive Medicine, Laval University, Québec, QC G1V 0A6, Canada;
| | - Stefanie Desmet
- Department of Microbiology, Immunology and Transplantation, KU Leuven, BE-3000 Leuven, Belgium;
- National Reference Centre for Streptococcus Pneumoniae, University Hospitals Leuven, 3000 Leuven, Belgium
| | | | - Charlotte Gilkison
- Epidemiology Team, Institute of Environmental Science and Research, Porirua, Wellington 5240, New Zealand;
| | - Marta Grgic-Vitek
- Communicable Diseases Centre, National Institute of Public Health, 1000 Ljubljana, Slovenia;
| | - Laura L. Hammitt
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA; (M.K.H.); (M.G.Q.); (J.N.S.); (S.L.Z.); (L.L.H.); (K.H.)
- KEMRI-Wellcome Trust Research Programme, Epidemiology and Demography Department, Centre for Geographic Medicine-Coast, P.O. Box 230-80108 Kilifi, Kenya; (E.W.K.); (J.A.S.)
| | - Markus Hilty
- Swiss National Reference Centre for Invasive Pneumococci, Institute for Infectious Diseases, University of Bern, 3012 Bern, Switzerland;
| | - Pak-Leung Ho
- Department of Microbiology and Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong, China;
| | - Sanjay Jayasinghe
- National Centre for Immunisation Research and Surveillance and Discipline of Child and Adolescent Health, Children’s Hospital Westmead Clinical School, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia;
| | - James D. Kellner
- Department of Pediatrics, University of Calgary, and Alberta Health Services, Calgary, AB T3B 6A8, Canada;
| | - Jackie Kleynhans
- Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg 2192, South Africa; (J.K.); (A.v.G.)
- School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2000, South Africa
| | - Mirjam J. Knol
- National Institute for Public Health and the Environment, 3721 MA Bilthoven, The Netherlands;
| | - Jana Kozakova
- National Institute of Public Health (NIPH), 100 42 Praha, Czech Republic;
| | - Karl G. Kristinsson
- Department of Clinical Microbiology, Landspitali—The National University Hospital, Hringbraut, 101 Reykjavik, Iceland;
| | - Shamez N. Ladhani
- Immunisation and Countermeasures Division, Public Health England, London NW9 5EQ, UK;
| | | | - Grant A. Mackenzie
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, Keppel St, London WC1E 7HT, UK;
- Medical Research Council Unit the Gambia at London School of Hygiene & Tropical Medicine, P.O. Box 273 Banjul, The Gambia
- New Vaccines Group, Murdoch Children’s Research Institute, Parkville, Melbourne, VIC 3052, Australia
| | - Lucia Mad’arová
- National Reference Centre for Pneumococcal and Haemophilus Diseases, Regional Authority of Public Health, 975 56 Banská Bystrica, Slovakia;
| | - Allison McGeer
- Toronto Invasive Bacterial Diseases Network, Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada;
| | - Jolita Mereckiene
- HSE Health Protection Surveillance Centre, Mountjoy, Dublin D01 A4A3, Ireland;
| | - Eva Morfeldt
- Department of Microbiology, Public Health Agency of Sweden, 171 82 Solna, Sweden;
| | - Tuya Mungun
- National Center of Communicable Diseases (NCCD), Ministry of Health, Bayanzurkh District, Ulaanbaatar 13336, Mongolia;
| | - Carmen Muñoz-Almagro
- CIBER Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain; (J.C.); (C.M.-A.)
- Medicine Department, Universitat Internacional de Catalunya, 08017 Barcelona, Spain
- Molecular Microbiology Department, Hospital Sant Joan de Déu Research Institute, 08950 Esplugues de Llobregat, Barcelona, Spain
| | - J. Pekka Nuorti
- Department of Health Security, Finnish Institute for Health and Welfare, 00271 Helsinki, Finland;
- Health Sciences Unit, Faculty of Social Sciences, University of Tampere, 33100 Tampere, Finland
| | - Metka Paragi
- Centre for Medical Microbiology, National Laboratory of Health, Environment and Food, 2000 Maribor, Slovenia;
| | - Tamara Pilishvili
- National Center for Immunizations and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA; (T.P.); (J.R.V.)
| | - Rodrigo Puentes
- Instituto de Salud Pública de Chile, Santiago 7780050, Santiago Metropolitan, Chile;
| | - Samir K. Saha
- Child Health Research Foundation, Dhaka 1207, Bangladesh;
| | | | - Larisa Savrasova
- Centre for Disease Prevention and Control of Latvia, 1005 Riga, Latvia;
- Doctoral Studies Department, Riga Stradinš University, 1007 Riga, Latvia
| | - J. Anthony Scott
- KEMRI-Wellcome Trust Research Programme, Epidemiology and Demography Department, Centre for Geographic Medicine-Coast, P.O. Box 230-80108 Kilifi, Kenya; (E.W.K.); (J.A.S.)
| | - Anna Skoczyńska
- National Reference Centre for Bacterial Meningitis, National Medicines Institute, 00-725 Warsaw, Poland;
| | - Shigeru Suga
- Infectious Disease Center and Department of Clinical Research, National Hospital Organization Mie Hospital, Tsu, Mie 514-0125, Japan;
| | - Mark van der Linden
- National Reference Center for Streptococci, Department of Medical Microbiology, University Hospital RWTH Aachen, 52074 Aachen, Germany;
| | - Jennifer R. Verani
- National Center for Immunizations and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA; (T.P.); (J.R.V.)
- Centers for Disease Control and Prevention (CDC), Center for Global Health (CGH), Division of Global Health Protection (DGHP), P.O. Box 606-00621 Nairobi, Kenya
| | - Anne von Gottberg
- Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg 2192, South Africa; (J.K.); (A.v.G.)
- School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Braamfontein, Johannesburg 2000, South Africa
| | - Brita A. Winje
- Department of Infection Control and Vaccine, Norwegian Institute of Public Health, 0456 Oslo, Norway;
| | - Inci Yildirim
- Department of Pediatrics, Yale New Haven Children’s Hospital, New Haven, CT 06504, USA;
| | - Khalid Zerouali
- Bacteriology-Virology and Hospital Hygiene Laboratory, Ibn Rochd University Hospital Centre, Casablanca 20250, Morocco;
- Department of Microbiology, Faculty of Medicine and Pharmacy, Hassan II University of Casablanca, Casablanca 20000, Morocco
| | - Kyla Hayford
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA; (M.K.H.); (M.G.Q.); (J.N.S.); (S.L.Z.); (L.L.H.); (K.H.)
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Doszpoly A, Kaján GL, Puentes R, Perretta A. Complete genome sequence and analysis of a novel lymphocystivirus detected in whitemouth croaker (Micropogonias furnieri): lymphocystis disease virus 4. Arch Virol 2020; 165:1215-1218. [PMID: 32140836 PMCID: PMC7160068 DOI: 10.1007/s00705-020-04570-1] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 01/30/2020] [Indexed: 11/01/2022]
Abstract
A novel lymphocystivirus causing typical signs of lymphocystis virus disease in whitemouth croaker (Micropogonias furnieri) on the coast of Uruguay was detected and described recently. Based on genetic analysis of some partially sequenced core genes, the virus seemed to differ from previously described members of the genus Lymphocystivirus. In this study, using next-generation sequencing, the whole genome of this virus was sequenced and analysed. The complete genome was found to be 211,086 bp in size, containing 148 predicted protein-coding regions, including the 26 core genes that seem to have a homologue in every iridovirus genome sequenced to date. Considering the current species demarcation criteria for the family Iridoviridae (genome organization, G+C content, amino acid sequence similarity, and phylogenetic relatedness of the core genes), the establishment of a novel species ("Lymphocystis disease virus 4") in the genus Lymphocystivirus is suggested.
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Affiliation(s)
- Andor Doszpoly
- Centre for Agricultural Research, Institute for Veterinary Medical Research, Hungarian Academy of Sciences, P.O. Box 18, Budapest, 1581, Hungary.
| | - Győző L Kaján
- Centre for Agricultural Research, Institute for Veterinary Medical Research, Hungarian Academy of Sciences, P.O. Box 18, Budapest, 1581, Hungary
| | - Rodrigo Puentes
- Instituto de Patobiología, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
| | - Alejandro Perretta
- Instituto de Investigaciones Pesqueras, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
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Perretta A, Doszpoly A, Puentes R, Bessonart M. Diagnosis of lymphocystis disease in a novel host, the whitemouth croaker Micropogonias furnieri, associated with a putatively novel Lymphocystivirus species (LCDV-WC). Dis Aquat Organ 2020; 137:185-193. [PMID: 31942864 DOI: 10.3354/dao03438] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In 2015, an episode of lymphocystis disease (LCD) was detected in wild and cultured populations of whitemouth croaker Micropogonias furnieri off the coast of Uruguay. Fish of both origins were collected for histopathological and molecular investigations. Macroscopically, multinodular tumorlike masses were observed in the skin. Histological examination of these masses revealed enlarged cells with a hyaline capsule and basophilic inclusion bodies in the cytoplasm. The inclusion bodies were further examined by electron microscopy and showed icosahedral virions with a median diameter of 182 nm. Routine molecular investigations targeting the DNA polymerase and major capsid protein genes showed the presence of the DNA of an unknown lymphocystis disease virus (LCDV) in all specimens showing external signs of LCD. Subsequently, 4 other core genes were amplified and sequenced from the viral genome. Phylogenetic tree reconstruction based on the concatenated sequence of 6 core genes indicated that the virus undoubtedly belongs to the genus Lymphocystivirus. However, the core gene sequences of the whitemouth croaker LCDV differ markedly from those of the 3 known LCDVs, putatively representing a fourth LCDV species.
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Affiliation(s)
- Alejandro Perretta
- Instituto de Investigaciones Pesqueras, Facultad de Veterinaria, Universidad de la República, Uruguay
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Franco-Luiz APM, Oliveira DB, Pereira AF, Gasparini MCS, Bonjardim CA, Ferreira PCP, Trindade GDS, Puentes R, Furtado A, Abrahão JS, Kroon EG. Detection of Vaccinia Virus in Dairy Cattle Serum Samples from 2009, Uruguay. Emerg Infect Dis 2016; 22:2174-2177. [PMID: 27869601 PMCID: PMC5189138 DOI: 10.3201/eid2212.160447] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 12/11/2022] Open
Abstract
We detected orthopoxvirus in 28 of 125 serum samples collected during 2009 from cattle in Uruguay. Two samples were PCR-positive for vaccinia virus and had sequences similar to those for vaccinia virus associated with outbreaks in Brazil. Autochthonous circulation of vaccinia virus in Uruguay and other South American countries cannot be ruled out.
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Puentes R, De Brun L, Algorta A, Da Silva V, Mansilla F, Sacco G, Llambí S, Capozzo AV. Evaluation of serological response to foot-and-mouth disease vaccination in BLV infected cows. BMC Vet Res 2016; 12:119. [PMID: 27329153 PMCID: PMC4915103 DOI: 10.1186/s12917-016-0749-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 06/16/2016] [Indexed: 12/24/2022] Open
Abstract
Background Bovine Leukemia Virus (BLV) produces disorders on the immune system in naturally infected animals, which may counteract the development of immunity after vaccination. The aim of this study was to investigate whether healthy and BLV infected cattle elicited similar humoral responses after foot and mouth disease (FMD) immunization. In a field study, 35 Holstein heifers were selected based on their BLV serological status and immunized with a single dose of a commercial bivalent oil-based FMD vaccine. Serum samples were collected at 0, 15, 60, 165 and 300 days post vaccination (dpv). Results Total anti-A24/Cruzeiro antibodies, IgM, IgG1, IgG2 titers and avidity index of specific antibodies were determined by ELISA. Although only marginally significant differences were found between groups in terms of total antibodies, anti-FMD IgM and IgG1 titers were significantly lower in heifers infected with BLV at the 15 dpv (p < 0.01). Animals that became infected during the study did not show differences to the BLV negative group. Conclusions Cattle infected with BLV at the time of immunization may elicit a low-magnitude serological response to a commercial Foot-and-mouth disease vaccine.
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Affiliation(s)
- Rodrigo Puentes
- Immunology Area - Department of Microbiological Sciences, Faculty of Veterinary, University of the Republic (UdelaR), Montevideo, Uruguay.
| | - Laureana De Brun
- Immunology Area - Department of Microbiological Sciences, Faculty of Veterinary, University of the Republic (UdelaR), Montevideo, Uruguay
| | - Agustina Algorta
- Immunology Area - Department of Microbiological Sciences, Faculty of Veterinary, University of the Republic (UdelaR), Montevideo, Uruguay
| | - Valeria Da Silva
- Immunology Area - Department of Microbiological Sciences, Faculty of Veterinary, University of the Republic (UdelaR), Montevideo, Uruguay
| | - Florencia Mansilla
- Centre of Veterinary Sciences and Agronomic Investigations, INTA, Virology Institute, Buenos Aires, Argentina
| | | | - Silvia Llambí
- Genetics Area, Faculty of Veterinary, University of the Republic (UdelaR), Montevideo, Uruguay
| | - Alejandra V Capozzo
- Centre of Veterinary Sciences and Agronomic Investigations, INTA, Virology Institute, Buenos Aires, Argentina.,CONICET - National Council of Scientific and Technological Research, Buenos Aires, Argentina
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11
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Puentes R, Campos FS, Furtado A, Torres FD, Franco AC, Maisonnave J, Roehe PM. Comparison between DNA Detection in Trigeminal Nerve Ganglia and Serology to Detect Cattle Infected with Bovine Herpesviruses Types 1 and 5. PLoS One 2016; 11:e0155941. [PMID: 27224314 PMCID: PMC4880179 DOI: 10.1371/journal.pone.0155941] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 01/06/2016] [Accepted: 05/08/2016] [Indexed: 12/02/2022] Open
Abstract
Bovine herpesviruses (BoHVs) types 1 (BoHV-1) and 5 (BoHV-5) are alphaherpesviruses of major importance to the bovine production chain. Such viruses are capable of establishing latent infections in neuronal tissues. Infected animals tend to develop a serological response to infection; however, such response—usually investigated by antibody assays in serum—may eventually not be detected in laboratory assays. Nevertheless, serological tests such as virus neutralization (VN) and various enzyme-linked immunosorbent assays (ELISAs) are widely employed to check individual or herd status of BoHV infections. The correlation between detection of antibodies and the presence of viral nucleic acids as indicatives of infection in infected cattle has not been deeply examined. In order to investigate such correlation, 248 bovine serum samples were tested by VN to BoHV-1 and BoHV-5, as well as in a widely employed (though not type-differential) gB ELISA (IDEXX IBR gB X2 Ab Test) in search for antibodies to BoHVs. Immediately after blood withdrawal, cattle were slaughtered and trigeminal ganglia (TG) excised for DNA extraction and viral nucleic acid detection (NAD) by nested PCR. Neutralizing antibodies to BoHV-1 and/or BoHV-5 were detected in 44.8% (111/248) of sera, whereas the gB ELISA detected antibodies in 51.2% (127/248) of the samples. However, genomes of either BoHV-1, BoHV-5, or both, were detected in TGs of 85.9% (213/248) of the animals. These findings reveal that the assays designed to detect antibodies to BoHV-1 and/or BoHV-5 employed here may fail to detect a significant number of latently infected animals (in this study, 35.7%). From such data, it is clear that antibody assays are poorly correlated with detection of viral genomes in BoHV-1 and BoHV-5-infected animals.
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MESH Headings
- Animals
- Antibodies, Viral/immunology
- Cattle
- Cattle Diseases/diagnosis
- Cattle Diseases/genetics
- Cattle Diseases/immunology
- Cell Line
- DNA, Viral/genetics
- Encephalitis, Viral/diagnosis
- Encephalitis, Viral/genetics
- Encephalitis, Viral/immunology
- Encephalitis, Viral/veterinary
- Enzyme-Linked Immunosorbent Assay/methods
- Herpesviridae Infections/diagnosis
- Herpesviridae Infections/genetics
- Herpesviridae Infections/immunology
- Herpesviridae Infections/veterinary
- Herpesvirus 1, Bovine/genetics
- Herpesvirus 1, Bovine/immunology
- Herpesvirus 5, Bovine/genetics
- Herpesvirus 5, Bovine/immunology
- Meningoencephalitis/diagnosis
- Meningoencephalitis/genetics
- Meningoencephalitis/immunology
- Meningoencephalitis/veterinary
- Polymerase Chain Reaction/methods
- Trigeminal Ganglion/virology
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Affiliation(s)
- Rodrigo Puentes
- Departamento de Ciencias Microbiológicas, Área de Inmunología, Facultad de Veterinaria, Universidad de la República Oriental del Uruguay (UdelaR), Montevideo, Uruguay
- * E-mail:
| | - Fabrício Souza Campos
- Laboratório de Microbiologia Veterinária, Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília (UnB), Distrito Federal (DF), Brazil
| | - Agustin Furtado
- Departamento de Ciencias Microbiológicas, Área de Inmunología, Facultad de Veterinaria, Universidad de la República Oriental del Uruguay (UdelaR), Montevideo, Uruguay
| | - Fabrício Dias Torres
- Laboratório de Virologia, Departamento de Microbiologia, Imunologia e Parasitologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Ana Cláudia Franco
- Laboratório de Virologia, Departamento de Microbiologia, Imunologia e Parasitologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Jacqueline Maisonnave
- Departamento de Ciencias Microbiológicas, Área de Inmunología, Facultad de Veterinaria, Universidad de la República Oriental del Uruguay (UdelaR), Montevideo, Uruguay
| | - Paulo Michel Roehe
- Laboratório de Virologia, Departamento de Microbiologia, Imunologia e Parasitologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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Díaz J, Cárcamo M, Seoane M, Pidal P, Cavada G, Puentes R, Terrazas S, Araya P, Ibarz-Pavon AB, Manríquez M, Hormazábal JC, Ayala S, Valenzuela MT. Prevalence of meningococcal carriage in children and adolescents aged 10-19 years in Chile in 2013. J Infect Public Health 2016; 9:506-15. [PMID: 26819097 DOI: 10.1016/j.jiph.2015.12.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [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: 07/07/2015] [Revised: 11/19/2015] [Accepted: 12/11/2015] [Indexed: 12/16/2022] Open
Abstract
In 2011, Chile experienced an increase in the number of cases of IMD caused by Neisseria meningitidis group W. This epidemiological scenario prompted authorities to implement prevention strategies. As part of these strategies, the Institute of Public Heath of Chile conducted a cross-sectional study to determine the prevalence of pharyngeal carriage of N. meningitidis in a representative sample of healthy children and adolescents aged 10-19 years. The identification of presumptive N. meningitidis strains was performed by testing carbohydrate utilization in the National Reference Laboratory at the ISP. Association of meningococcal carriage with risk factors was analyzed by calculating the Odds Ratio. Selected variables were included in a logistic model for risk analyses. The prevalence of carriage of N. meningitidis was 6.5% (CI: 5.7-7.3%). Older age (carriers: 14.2±0.29 vs. non-carriers: 13.8±0.08 years old; p=0.009), cohabitation with children (carriers: 0.9±0.13 vs. non-carriers: 0.7±0.03; p=0.028), number of smoking cohabitants (carriers: 0.55±0.13 vs. non-carriers: 0.44±0.03) and frequent attendance to crowded social venues (carriers: 49% vs. non-carriers: 37%; p=0.008) were determined to favor carriage. Statistical modeling showed that meningococcal carriage was associated with older age (OR: 1.077, p-value: 0.002) and cohabitation with children (OR: 1.182, p-value: 0.02).
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Affiliation(s)
- Janepsy Díaz
- Departamento de Asuntos Científicos, Instituto de Salud Pública de Chile, Santiago, Chile.
| | - Marcela Cárcamo
- Departamento de Asuntos Científicos, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Mabel Seoane
- Departamento de Laboratorio Biomédico Nacional de Referencia, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Paola Pidal
- Departamento de Laboratorio Biomédico Nacional de Referencia, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Gabriel Cavada
- Departamento de Asuntos Científicos, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Rodrigo Puentes
- Departamento de Asuntos Científicos, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Solana Terrazas
- Departamento de Asuntos Científicos, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Pamela Araya
- Departamento de Laboratorio Biomédico Nacional de Referencia, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Ana B Ibarz-Pavon
- Pan-American Health Organization/World Health Organization, Washington, DC, USA
| | - Macarena Manríquez
- Departamento de Asuntos Científicos, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Juan C Hormazábal
- Departamento de Laboratorio Biomédico Nacional de Referencia, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Salvador Ayala
- Departamento de Asuntos Científicos, Instituto de Salud Pública de Chile, Santiago, Chile
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Maya L, Puentes R, Reolón E, Acuña P, Riet F, Rivero R, Cristina J, Colina R. Molecular diversity of bovine viral diarrhea virus in uruguay. Arch Virol 2015; 161:529-35. [PMID: 26597189 DOI: 10.1007/s00705-015-2688-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 11/14/2015] [Indexed: 10/22/2022]
Abstract
Bovine viral diarrhea (BVD) affects bovine production and reproduction causing significant economic losses all over the world. Two viral species has been recognized: BVDV-1 and BVDV-2, both distributed worldwide. Recently, novel specie of BVDV named HoBi-like pestivirus was discovered. The presence of BVDV was confirmed in 1996 in Uruguay, however, does not exist until today a schedule of compulsory vaccination along the country. Serological studies with samples from all Uruguayan herds were performed during 2000 and 2001 demonstrating that all of them were seropositive to BVDV with a mean prevalence of 69%. In addition, there have been no new studies done since those previously described and it is important to mention that the genetic diversity of BVD has never been described in Uruguay. Nowadays, there is strongly suspect that BVDV is one of the most important causes of reproductive failures in our herds. The aim of this study was to describe for the first time in Uruguay the genetic diversity of BVDV with samples collected from different regions along the country. Serological status of 390 non-vaccinated animals against BVDV with reproductive problems from farms of Rivera, Tacuarembó and Florida departments of Uruguay were studied. All herds were seropositive to BVDV and high proportion of animals were positive (298/390), while 4.1% (16/390) of the animals were positive to Antigen Capture ELISA test and Real Time PCR. Phylogenetic analysis performed with concatenated sequences from the 5'UTR and Npro genomic regions revealed that BVDV-1 and BVDV-2 are infecting our herds, being BVDV-1 the most frequently found. The major subtype was BVDV-1a, followed by BVDV-1i and BVDV-2b. This is the first study that describes the genetic diversity of BVDV in Uruguay and it will contribute to the elaboration of sanitization programs.
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Affiliation(s)
- L Maya
- Laboratorio de Virología Molecular, Regional Norte, CENUR Noroeste, Universidad de la República, Gral. Rivera 1350, 50000, Salto, Uruguay
| | - R Puentes
- Área de Inmunología, Facultad de Veterinaria, Universidad de la República, Lasplaces 1550, 11500, Montevideo, Uruguay
| | - E Reolón
- Laboratorios Santa Elena-VIRBAC, Av. Millán 4175, CP 12900, Montevideo, Uruguay
| | - P Acuña
- Laboratorios Santa Elena-VIRBAC, Av. Millán 4175, CP 12900, Montevideo, Uruguay
| | - F Riet
- Instituto Nacional de Investigación Agropecuaria (INIA), La Estanzuela, CP 70.000, Casilla De Correo, 39173, Colonia del Sacramento, Uruguay
| | - R Rivero
- DILAVE "Miguel C. Rubino", Laboratorio Regional Noroeste, Casilla De Correo 57.037. CP 60.000, Paysandú, Uruguay
| | - J Cristina
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400, Montevideo, Uruguay
| | - R Colina
- Laboratorio de Virología Molecular, Regional Norte, CENUR Noroeste, Universidad de la República, Gral. Rivera 1350, 50000, Salto, Uruguay.
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14
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Affiliation(s)
- A. L. Severo
- Institute of Orthopedics and Traumatology of Passo Fundo (RS-IOT), Brazil
| | - R. Araújo
- Institute of Orthopedics and Traumatology of Passo Fundo (RS-IOT), Brazil
| | - R. Puentes
- Institute of Orthopedics and Traumatology of Passo Fundo (RS-IOT), Brazil
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15
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Puentes R, Eliopulos N, Pérez R, Franco G, Sosa K, Bianchi P, Furtado A, Hübner S, Esteves P. Isolation and characterization of canine parvovirus type 2c (CPV-2c) from symptomatic puppies. Braz J Microbiol 2012. [DOI: 10.1590/s1517-83822012000300022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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16
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Puentes R, Eliopulos N, Pérez R, Franco G, Sosa K, Bianchi P, Furtado A, Hübner SO, Esteves PA. Isolation and characterization of canine parvovirus type 2C (CPV-2C) from symptomatic puppies. Braz J Microbiol 2012; 43:1005-9. [PMID: 24031919 PMCID: PMC3768885 DOI: 10.1590/s1517-838220120003000022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Revised: 08/14/2011] [Accepted: 06/07/2012] [Indexed: 11/21/2022] Open
Abstract
Canine parvovirus type 2 (CPV-2) is a leading cause of diarrhea in puppies in several parts of the world. In this study CPV-2 was detected and recovered from puppies showing clinical disease from Montevideo, Uruguay. Samples were processed and used to infect CRFK and MDCK cells in order to isolate the virus. Out of twelve, two samples were positive for CPV-2. A genomic region of 583 bp was amplified and the molecular characterization was performed by sequencing, phylogenetic analysis and Restriction Fragment Length Polymorphism (RFLP). Two isolated viruses (UY1 and UY2) were CPV-2c-like viruses. The comparison between the cytophatic effect (CPE) of CPV-2 (vaccinal virus) and CPV-2c (isolated virus) on primary canine cells cultures and on CRFK line cells, demonstrated that CPV-2c is less citopathogenic in CRFK than in primary cultures. Our study represents the first report on isolation and characterization of canine parvovirus type 2c (CPV-2c) in cell cultures from South American dogs.
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Affiliation(s)
- R Puentes
- Departamento de Ciencias Microbiológicas, Facultad de Veterinaria , UdelaR, Montevideo , Uruguay
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17
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Esteves PA, Dellagostin OA, Pinto LS, Silva AD, Spilki FR, Ciacci-Zanella JR, Hübner SO, Puentes R, Maisonnave J, Franco AC, Rijsewijk FAM, Batista HBCR, Teixeira TF, Dezen D, Oliveira AP, David C, Arns CW, Roehe PM. Phylogenetic comparison of the carboxy-terminal region of glycoprotein C (gC) of bovine herpesviruses (BoHV) 1.1, 1.2 and 5 from South America (SA). Virus Res 2008; 131:16-22. [PMID: 17889957 DOI: 10.1016/j.virusres.2007.08.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2007] [Revised: 08/03/2007] [Accepted: 08/03/2007] [Indexed: 11/29/2022]
Abstract
Different types and subtypes of bovine herpesvirus 1 and 5 (BoHV-1 and BoHV-5) have been associated to different clinical conditions of cattle, in such a way that type/subtype differentiation has become an essential tool for understanding the pathogenesis and epidemiology of BoHV infections. In search for a genomic region that would allow a clear distinction between BoHV-1 and BoHV-5, the carboxy-terminal portion of glycoprotein C (gC), corresponding to residues 321-450 (BoHV-1) and 301-429 (BoHV-5) of 23 South American (SA) isolates (Brazil mostly) was amplified and sequenced. The nucleotide sequence alignments revealed levels of genomic similarity ranging from 98.7 to 99.8% among BoHV-1 isolates, 88.3 to 92% between BoHV-1/BoHV-5 and 96 to 99.7% among BoHV-5 isolates. At the amino acid level, sequence similarity varied ranging from 97.5 to 99.5% among BoHV-1, 77.5 to 84.4% between BoHV-1/BoHV-5 and 92.1 to 99.5% (BoHV-5/BoHV-5). The isolates could be clearly separated into BoHV-1.1, BoHV-1.2 and BoHV-5 after phylogenetic analysis. The results suggest that the phylogenetic analysis performed here can be used as a potential molecular epidemiological tool for herpesviruses.
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Affiliation(s)
- P A Esteves
- Embrapa Suínos e Aves, BR 153, Km 110, CEP: 89700-000, Concórdia, SC, Brazil.
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18
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Berrocal YA, Pearse DD, Andrade CM, Hechtman JF, Puentes R, Eaton MJ. Increased spinal c-Fos expression with noxious and non-noxious peripheral stimulation after severe spinal contusion. Neurosci Lett 2006; 413:58-62. [PMID: 17161529 DOI: 10.1016/j.neulet.2006.11.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2006] [Revised: 11/13/2006] [Accepted: 11/13/2006] [Indexed: 11/20/2022]
Abstract
The effects of severe contusive spinal cord injury (SCI), at thoracic level 8 (T8), on lumbar c-Fos expression in the spinal cord was investigated. As hypothesized, chronic SCI has a significant effect on expression of c-Fos in the dorsal spinal sensory areas with noxious and innocuous peripheral stimulation of the sciatic nerve. This alteration to stimulation effects was measured using counts of c-Fos immunoreactive cells in the dorsal horn of the L5 lumbar spinal cord in injured animals at 90 days post-injury and in uninjured controls. The number of c-Fos immunoreactive cells increased in SCI rats only after noxious peripheral stimulation (electrical and chemical) suggesting a general increase in excitability in spinal pathways (central sensitization) associated with chronic SCI. These altered responses may represent a functional anatomical reorganization of spinal cord circuitry leading to increased dorsal horn c-Fos expression as a response to severe chronic contusive damage to the spinal cord sensory pathways.
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Affiliation(s)
- Y A Berrocal
- The Miami Project to Cure Paralysis, Miami, FL 33136, United States
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19
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Jury G, Castillo C, Atalah E, Puentes R, Riumallo J. [Growth, acceptance, and tolerance with a new milk formula]. Rev Chil Pediatr 1991; 62:87-93. [PMID: 1844168] [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] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The purpose of this investigation was to evaluate the effect of a modified cow's milk formula on growth, tolerance and acceptability, which was studied in 2,097 infants selected from those controlled in primary health centers at Santiago, Chile: 1,119 were fed a modified cow's milk formula (LPM), while an unmodified powdered cow's milk (LP) was given to 978 controls of the same age and conditions, as well as solid foods after 4 months of age. Both experimental and control groups were followed along a 4 months period for records of anthropometric data, morbidity, acceptability and tolerance for LP and LPM. We did not find significant differences in growth (values ranging 95 to 100% of NCHS standards W/A or H/A). A slightly higher energy intake and lower protein intake was observed with LPM. Gastrointestinal symptoms were infrequently seen and of similar frequency and character in both 0 to 4 month old groups (4.3% with LPM vs. 5.3% with LP at first control). These gastrointestinal signs were more frequently recorded under LPM than with LP in the 8 to 12 months old group only at first control (colics 8% vs. 4% p < 0.01 and abnormal stools 9.4% vs. 5.5% p < 0.01). Acute acceptability expressed as percentage withdrawal from study was not significantly lower with LPM than LP (5 to 15% vs. 2% N.S.). The proposed modified formula seems to be a good alternative to powdered cow's milk for infants.
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Affiliation(s)
- G Jury
- Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile
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20
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Fernández F, Puentes R, Quiroga S, Salas I, Soriano H. [Maternal perception of the quality of care given to their children during hospitalization]. Rev Chil Pediatr 1991; 62:56-60. [PMID: 1844005] [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] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In order to evaluate the perception of mothers on the care given to their hospitalized children, a survey was specially designed and carried out with 100 mothers on the day of their child's discharge. Hospital care was rated excellent or good by a 96%, regular or bad by 4% of surveyed mothers. Most (74%) mothers saw at least one member of the caring team acting affectionately with their children; only 2% complained that her child was reprimanded or punished. Lack of equipment or human resources and comfort facilities were frequently perceived by mothers but quality of care was generally considered to be satisfactory. This kind of studies is probably useful to improve community's health services.
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Affiliation(s)
- F Fernández
- Servicio de Pediatría, Hospital Dr. Sótero del Río
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21
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Escudero P, Puentes R, Araos F, Contreras AM, Latorre M. [The foster home as an integral recovery system for undernourished and severely undernourished infants (COFADE program)]. Rev Chil Pediatr 1987; 58:414-8. [PMID: 3508317] [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: 01/06/2023]
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22
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Puentes R. [Child nutrition]. Rev Chil Pediatr 1987; 58:191-2. [PMID: 3454455] [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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23
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Puentes R, Ibañez S, Salvatierra V, Mejías MC, Jiménez AM. [Ambulatory treatment of protein-calorie malnutrition of infants. Infant nutrition center]. Rev Chil Pediatr 1986; 57:91-6. [PMID: 3094104] [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: 01/04/2023]
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24
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Atalah E, Puentes R, Castillo C, Radrigán ME. [National Program of Supplemented Food 1965-1985]. Rev Chil Pediatr 1985; 56:362-8. [PMID: 3835606] [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: 01/07/2023]
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25
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Castillo C, Salvatierra V, Mejías MC, Olmos E, Guzmán MP, Manríquez A, Puentes R. [Recovery of severely malnourished children in an area of Santiago, Chile]. Bol Oficina Sanit Panam 1983; 95:173-81. [PMID: 6226302] [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: 01/19/2023]
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26
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Castillo C, Salvatierra V, Mejías MC, Olmos E, Guzmán MP, Manríquez A, Puentes R. Treatment of children suffering from severe malnutrition in an area of Santiago, Chile. Bull Pan Am Health Organ 1983; 17:387-395. [PMID: 6421352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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27
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Vejar L, Solar E, Matte R, Puentes R. [Pulmonary tuberculosis in infants]. Rev Chil Pediatr 1982; 53:565-9. [PMID: 6820825] [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: 01/22/2023]
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28
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Gallo A, Puentes R, Kunstmann S, Arenas E, Riedel I. [Etiology of acute pneumopathies in infants]. Rev Chil Pediatr 1982; 53:570-4. [PMID: 7184073] [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: 01/23/2023]
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29
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Puentes R, Uauy R, Castillo C. [Copper deficit in infants]. Rev Chil Pediatr 1982; 53:144-149. [PMID: 6817392] [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: 05/21/2023]
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30
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Ibáñez S, León L, Funez F, Puentes R, Gallo A. Realimentacion con crema de zanahoria de lactantes con diarrea aguda y deshidratacion. ACTA ACUST UNITED AC 1979. [DOI: 10.4067/s0370-41061979000500001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Ibáñez S, León L, Funez F, Puentes R, Gallo A. [Re-feeding of infants with carrot cream in acute diarrhea and dehydration]. Rev Chil Pediatr 1979; 50:5-9. [PMID: 120568] [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: 12/13/2022]
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32
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Campbell M, Puentes R, Talesnik E, Pruyas M, Taboada H, López TM. [Bacterial septicemias in infants. Clinico-pathological correlations]. Rev Chil Pediatr 1979; 50:5-12. [PMID: 116331] [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: 12/13/2022]
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33
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Puentes R, Morales R, Isala E, Domínguez I, Mejías C, Hernández CG. [Acute protein-calorie malnutrition. Evaluation of the recuperation course]. Rev Chil Pediatr 1977; 48:193-202. [PMID: 100835] [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: 12/13/2022]
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34
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Talesnik E, Campbell M, Puentes R, Pruyas M, Taboada H, López TM. [Hematological study of bacterial septicemia of the infant]. Rev Chil Pediatr 1977; 48:120-5. [PMID: 616947] [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: 12/23/2022]
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35
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Ceron A, Gallo A, Ibañez S, Morales R, Otto MA, Puentes R. [Acute diarrhea with dehydration of torpid evolution]. Rev Chil Pediatr 1975; 46:437-44. [PMID: 1235581] [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: 12/26/2022]
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36
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Vejar L, Puentes R, Guajardo YH, Isla E, Garcia T, Muñoz J, Cubillos I, Montoya P, Hernández C, Montécinos MA. [Program of infant nutrition. Southwest region of Santiago. Evolution of the work of 1 year]. Rev Chil Pediatr 1975; 46:523-9. [PMID: 1235589] [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: 12/26/2022]
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37
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Puentes R, Cerda M, Orellana B, Lopez TM. [Sepsis due to Citrobacter in the infant]. Rev Chil Pediatr 1975; 46:211-7. [PMID: 1234355] [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: 12/26/2022]
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