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Mendoza JDV, Silva-Caso W, Cornejo-Tapia A, Orellana-Peralta F, Verne E, Ugarte C, Luis MAA, Lama-Odria MD, Nazario-Fuertes R, Esquivel-Vizcarra M, Casabona-Oré V, Weilg P, del Valle L. Molecular etiological profile of atypical bacterial pathogens, viruses and coinfections among infants and children with community acquired pneumonia admitted to a national hospital in Lima, Peru. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.3448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Del Valle-Mendoza J, Silva-Caso W, Cornejo-Tapia A, Orellana-Peralta F, Verne E, Ugarte C, Aguilar-Luis MA, De Lama-Odría MDC, Nazario-Fuertes R, Esquivel-Vizcarra M, Casabona-Ore V, Weilg P, Del Valle LJ. Molecular etiological profile of atypical bacterial pathogens, viruses and coinfections among infants and children with community acquired pneumonia admitted to a national hospital in Lima, Peru. BMC Res Notes 2017; 10:688. [PMID: 29208015 PMCID: PMC5718007 DOI: 10.1186/s13104-017-3000-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 04/25/2017] [Accepted: 11/25/2017] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE The main objective of this study was to detect the presence of 14 respiratory viruses and atypical bacteria (Mycoplasma pneumoniae, Chlamydia pneumoniae), via polymerase chain reaction in patients under 18 years old hospitalized due to community-acquired pneumonia (CAP) from Lima, Peru. RESULTS Atypical pathogens were detected in 40% (58/146); viral etiologies in 36% (52/146) and coinfections in 19% (27/146). The most common etiological agent was M. pneumoniae (n = 47), followed by C. pneumoniae (n = 11). The most frequent respiratory viruses detected were: respiratory syncytial virus A (n = 35), influenza virus C (n = 21) and parainfluenza virus (n = 10). Viral-bacterial and bacterium-bacterium coinfections were found in 27 cases. In our study population, atypical bacteria (40%) were detected as frequently as respiratory viruses (36%). The presence of M. pneumoniae and C. pneumoniae should not be underestimated as they can be commonly isolated in Peruvian children with CAP.
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Affiliation(s)
- Juana Del Valle-Mendoza
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cdra. 2. Cedros de Villa, Chorrillos, Lima, Peru. .,Instituto de Investigación Nutricional, Av. La Molina 1885, Lima 12, Peru.
| | - Wilmer Silva-Caso
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cdra. 2. Cedros de Villa, Chorrillos, Lima, Peru.,Instituto de Investigación Nutricional, Av. La Molina 1885, Lima 12, Peru
| | - Angela Cornejo-Tapia
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cdra. 2. Cedros de Villa, Chorrillos, Lima, Peru
| | - Fiorella Orellana-Peralta
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cdra. 2. Cedros de Villa, Chorrillos, Lima, Peru
| | | | | | - Miguel Angel Aguilar-Luis
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cdra. 2. Cedros de Villa, Chorrillos, Lima, Peru.,Instituto de Investigación Nutricional, Av. La Molina 1885, Lima 12, Peru
| | - María Del Carmen De Lama-Odría
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cdra. 2. Cedros de Villa, Chorrillos, Lima, Peru
| | | | | | - Verónica Casabona-Ore
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cdra. 2. Cedros de Villa, Chorrillos, Lima, Peru
| | - Pablo Weilg
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cdra. 2. Cedros de Villa, Chorrillos, Lima, Peru
| | - Luis J Del Valle
- Barcelona Research Center for Multiscale Science and Engineering, Departament d'Enginyeria Quıímica, EEBE, Universitat Politècnica de Catalunya (UPC), Barcelona Tech, C/Eduard Maristany, 10-14, Ed. I2, 08019, Barcelona, Spain.
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del Valle Mendoza J, Cornejo-Tapia A, Weilg P, Verne E, Nazario-Fuertes R, Ugarte C, del Valle LJ, Pumarola T. Incidence of respiratory viruses in Peruvian children with acute respiratory infections. J Med Virol 2015; 87:917-24. [PMID: 25784285 PMCID: PMC7167149 DOI: 10.1002/jmv.24159] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [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] [Accepted: 01/07/2015] [Indexed: 11/08/2022]
Abstract
Acute respiratory infections are responsible for high morbi-mortality in Peruvian children. However, the etiological agents are poorly identified. This study, conducted during the pandemic outbreak of H1N1 influenza in 2009, aims to determine the main etiological agents responsible for acute respiratory infections in children from Lima, Peru. Nasopharyngeal swabs collected from 717 children with acute respiratory infections between January 2009 and December 2010 were analyzed by multiplex RT-PCR for 13 respiratory viruses: influenza A, B, and C virus; parainfluenza virus (PIV) 1, 2, 3, and 4; and human respiratory syncytial virus (RSV) A and B, among others. Samples were also tested with direct fluorescent-antibodies (DFA) for six respiratory viruses. RT-PCR and DFA detected respiratory viruses in 240 (33.5%) and 85 (11.9%) cases, respectively. The most common etiological agents were RSV-A (15.3%), followed by influenza A (4.6%), PIV-1 (3.6%), and PIV-2 (1.8%). The viruses identified by DFA corresponded to RSV (5.9%) and influenza A (1.8%). Therefore, respiratory syncytial viruses (RSV) were found to be the most common etiology of acute respiratory infections. The authors suggest that active surveillance be conducted to identify the causative agents and improve clinical management, especially in the context of possible circulation of pandemic viruses.
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Affiliation(s)
- Juana del Valle Mendoza
- School of Medicine, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas-UPC, Lima, Perú; Nutrition Research Institute, Lima, Perú
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