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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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Castillo ME, Bada C, Del Aguila O, Petrozzi-Helasvuo V, Casabona-Ore V, Reyes I, Del Valle-Mendoza J. Detection of Bordetella pertussis using a PCR test in infants younger than one year old hospitalized with whooping cough in five Peruvian hospitals. Int J Infect Dis 2015; 41:36-41. [PMID: 26523641 DOI: 10.1016/j.ijid.2015.10.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [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] [Received: 07/22/2015] [Revised: 09/29/2015] [Accepted: 10/24/2015] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES To report the incidence, epidemiology, and clinical features of Bordetella pertussis in Peruvian infants under 1 year old. PATIENTS AND METHODS A prospective cross-sectional study was conducted in five hospitals in Peru from January 2010 to July 2012. A total of 392 infants under 1 year old were admitted with a clinical diagnosis of whooping cough and tested for B. pertussis by PCR. RESULTS The pertussis toxin and IS481 genes were detected in 39.54% (155/392) of the cases. Infants aged less than 3 months were the most affected, with a prevalence of 73.55% (114/155). The most common household contact was the mother, identified in 20% (31/155) of cases. Paroxysm of coughing (89.03%, 138/155), cyanosis (68.39%, 106/155), respiratory distress (67.09%, 104/155), and breastfeeding difficulties (39.35%, 61/155) were the most frequent symptoms reported. CONCLUSION An increase in pertussis cases has been reported in recent years in Peru, despite national immunization efforts. Surveillance with PCR for B. pertussis is essential, especially in infants less than 1 year old, in whom a higher rate of disease-related complications and higher mortality have been reported.
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Affiliation(s)
| | - Carlos Bada
- Hospital de Emergencias Pediátricas, La Victoria, Lima, Peru
| | | | - Verónica Petrozzi-Helasvuo
- Centro de Investigación de la Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cuadra 2, Chorrillos, Lima, Peru
| | - Verónica Casabona-Ore
- Centro de Investigación de la Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cuadra 2, Chorrillos, Lima, Peru
| | - Isabel Reyes
- Hospital de Emergencias Pediátricas, La Victoria, Lima, Peru
| | - Juana Del Valle-Mendoza
- Centro de Investigación de la Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cuadra 2, Chorrillos, Lima, Peru.
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