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Silva-Caso W, Carrillo-Ng H, Aguilar-Luis MA, Tarazona-Castro Y, Valle LJD, Tinco-Valdez C, Palomares-Reyes C, Urteaga N, Bazán-Mayra J, del Valle-Mendoza J. Parasitosis by Fasciola hepatica and Variations in Gut Microbiota in School-Aged Children from Peru. Microorganisms 2024; 12:371. [PMID: 38399775 PMCID: PMC10891680 DOI: 10.3390/microorganisms12020371] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
(1) Background: Human fascioliasis is considered an endemic and hyper-endemic disease in the Peruvian Andean valleys. Our objective was to determine variations in the composition of the gut microbiota among children with Fasciola hepatica and children who do not have this parasitosis. (2) Method: A secondary analysis was performed using fecal samples stored in our biobank. The samples were collected as part of an epidemiological Fasciola hepatica cross-sectional study in children from 4 through 14 years old from a community in Cajamarca, Peru. (3) Results: In a comparison of the bacterial genera that make up the intestinal microbiota between the F. hepatica positive and negative groups, it was found that there are significant differences in the determination of Lactobacillus (p = 0.010, CI: 8.5-61.4), Bacteroides (p = 0.020, CI: 18.5-61.4), Clostridium (p < 0.001, CI: 3.5-36.0), and Bifidobacterium (p = 0.018, CI: 1.1-28.3), with each of these genera being less frequent in children parasitized with F. hepatica. (4) Conclusions: These results show that F. hepatica may be associated with direct or indirect changes in the bacterial population of the intestinal microbiota, particularly affecting three bacterial genera.
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Affiliation(s)
- Wilmer Silva-Caso
- Research and Innovation Centre, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (Y.T.-C.); (C.T.-V.); (C.P.-R.)
- Instituto de Investigación Nutricional, Lima 15024, Peru
- Escuela de Medicina, Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru
| | - Hugo Carrillo-Ng
- Research and Innovation Centre, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (Y.T.-C.); (C.T.-V.); (C.P.-R.)
- Instituto de Investigación Nutricional, Lima 15024, Peru
| | - Miguel Angel Aguilar-Luis
- Research and Innovation Centre, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (Y.T.-C.); (C.T.-V.); (C.P.-R.)
- Instituto de Investigación Nutricional, Lima 15024, Peru
- Escuela de Medicina, Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru
| | - Yordi Tarazona-Castro
- Research and Innovation Centre, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (Y.T.-C.); (C.T.-V.); (C.P.-R.)
- Instituto de Investigación Nutricional, Lima 15024, Peru
| | - Luis J. Del Valle
- Barcelona Research Center for Multiscale Science and Engineering, Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain;
| | - Carmen Tinco-Valdez
- Research and Innovation Centre, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (Y.T.-C.); (C.T.-V.); (C.P.-R.)
| | - Carlos Palomares-Reyes
- Research and Innovation Centre, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (Y.T.-C.); (C.T.-V.); (C.P.-R.)
- Escuela de Medicina, Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru
| | - Numan Urteaga
- Puesto de Salud Callancas, Dirección Regional de Salud Cajamarca (DIRESA), Cajamarca 60101, Peru;
| | - Jorge Bazán-Mayra
- Laboratorio Regional de Cajamarca, Dirección Regional de Salud de Cajamarca (DIRESA), Cajamarca 60101, Peru;
| | - Juana del Valle-Mendoza
- Research and Innovation Centre, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (Y.T.-C.); (C.T.-V.); (C.P.-R.)
- Instituto de Investigación Nutricional, Lima 15024, Peru
- Escuela de Medicina, Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru
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Aguilar-Luis MA, Watson H, Tarazona-Castro Y, Troyes-Rivera L, Cabellos-Altamirano F, Silva-Caso W, Aquino-Ortega R, Carrillo-Ng H, Zavaleta-Gavidia V, del Valle-Mendoza J. The Chikungunya virus: A reemerging cause of acute febrile illness in the high jungle of northern Peru. PLoS Negl Trop Dis 2023; 17:e0011787. [PMID: 38079402 PMCID: PMC10712839 DOI: 10.1371/journal.pntd.0011787] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 11/09/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND The Chikungunya virus (CHIKV) is an emerging arthropod-borne virus (arbovirus) that causes undifferentiated acute febrile illness. Cases of CHIKV may be under-reported in Peru, given the various difficulties in diagnosing it, such as lack of diagnostic tests in remote areas, the passive nature of epidemiological surveillance, and co-circulation of other arthropod-borne pathogens. Therefore, a study was conducted in the high jungle of northern Peru to determine the prevalence of CHIKV among febrile patients and describe their clinical characteristics. METHODS A cross-sectional study was conducted in the province of Jaen, Cajamarca, located in the high jungle of northern Peru. Patients attending primary healthcare centers within Cajamarca's Regional Health Directorate were enrolled. The study took place from June 2020 through June 2021. Patients were eligible if they sought outpatient healthcare for a clinical diagnosis of acute febrile illness (AFI). Serum samples were collected from all patients, and the diagnosis of CHIKV was determined using real-time RT-PCR, as well as the detection of IgM antibodies by ELISA. A logistic regression model was employed to identify the risk factors for CHIKV, and the odds ratios (ORs) were calculated, along with their corresponding 95% confidence intervals (95% CI). RESULTS A total of 1 047 patients with AFI were included during the study period. CHIKV was identified in 130 patients of 1 047 (12.4%). Among the CHIKV positive cases, 84 of 130 (64.6%) were diagnosed by RT-PCR, 42 of 130 (32.3%) by IgM ELISA detection, and 4 of 130 (3.1%) by both assays. The majority of patients with CHIKV infection fell within the 18-39 years age group (50.0%), followed by the 40-59 years age group (23.9%) and those with 60 years or older (10.8%). The most common clinical symptoms observed in patients with CHIKV infection were headache (85.4%), myalgias (72.3%), and arthralgias (64.6%). The highest number of positive CHIKV cases occurred in May (23.1%), followed by March (20.0%) and February (13.8%) of 2021. CONCLUSION The study reports a considerable frequency of CHIKV infections among patients with AFI from the high jungle of northern Peru. These findings highlight the importance of recognizing CHIKV as an ongoing pathogen with continuous transmission in various areas of Peru. It is crucial to enhance epidemiological surveillance by implementing reliable diagnostic techniques, as the clinical symptoms of CHIKV infection can be nonspecific.
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Affiliation(s)
- Miguel Angel Aguilar-Luis
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Hugh Watson
- Antiviral Research Unit, Evotec ID, Lyon, France
| | - Yordi Tarazona-Castro
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | | | | | - Wilmer Silva-Caso
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Ronald Aquino-Ortega
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Hugo Carrillo-Ng
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Victor Zavaleta-Gavidia
- Regional Laboratory of Cajamarca, Regional Health Directorate (Dirección Regional de Salud, DIRESA) of Cajamarca, Cajamarca, Peru
| | - Juana del Valle-Mendoza
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
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Pella-Saavedra P, Ramos-Vallejos F, del Valle-Mendoza J, Becerra-Goicochea L, Silva-Caso W, Pinillos-Vilca L, Cornejo-Tapia A, Martins-Luna J, Aquino-Ortega R, Carrillo-Ng H, Aguilar-Luis MA. Prevalence of coinfections in a cross-sectional cohort of women screened for multiple pathogens in Peru. Heliyon 2023; 9:e14257. [PMID: 36950601 PMCID: PMC10025105 DOI: 10.1016/j.heliyon.2023.e14257] [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: 07/18/2022] [Revised: 02/21/2023] [Accepted: 02/28/2023] [Indexed: 03/18/2023] Open
Abstract
Objective To determine the prevalence and risk factors of sexually transmitted infections (STIs) including Chlamydia trachomatis, Ureaplasma urealyticum and Mycoplasma genitalium among asymptomatic women with human papillomavirus (HPV) infection. Methods A cross-sectional study was performed in 842 asymptomatic women from Cajamarca, Peru. The pathogens were detected using polymerase chain reaction (PCR) and the results were analyzed according to the HPV status: high-risk HPV, low-risk HPV and negative for HPV. Demographical and gyneco-obstetric data was analyzed to identify risk factors. Results We found that 23.99% (202/842) women were positive for HPV, of whom 79.21% (160/202) were infected with a high-risk genotype. Co-infections were evaluated and 14.38% (23/160) were positive for Ureaplasma urealyticum, 9.38% (15/160) for Chlamydia trachomatis and 1.25% (2/160) for Mycoplasma genitalium. We found a significant association between HPV genotype and the number of children, partners, and history of sexual abuse. The co-infection between high-risk HPV and Chlamydia trachomatis was associated with number of abortions, number of sexual partners and no use of condom. Finally, co-infection between high-risk HPV and Ureaplasma urealyticum was associated with no use of condom and history of STIs. Conclusion HPV infection continues to be a highly relevant problem in Peru, particularly due to the high prevalence of high-risk genotypes. In addition, we report high rates of co-infections with other STIs, such as U. urealyticum and C. trachomatis. We highlight the importance of active surveillance to promptly diagnose these infections, since they may lead to persistent HPV infections.
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Affiliation(s)
- Priscilla Pella-Saavedra
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Fatima Ramos-Vallejos
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Juana del Valle-Mendoza
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
- Corresponding authors. School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru.
| | - Lorena Becerra-Goicochea
- Hospital Regional Docente de Cajamarca, Cajamarca, Peru
- Facultad de Ciencias de la Salud. Universidad Nacional de Cajamarca, Cajamarca, Peru
| | - Wilmer Silva-Caso
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Luis Pinillos-Vilca
- Hospital Regional Docente de Cajamarca, Cajamarca, Peru
- Facultad de Medicina. Universidad Nacional de Cajamarca, Cajamarca, Peru
| | - Angela Cornejo-Tapia
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Johanna Martins-Luna
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Ronald Aquino-Ortega
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Hugo Carrillo-Ng
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Miguel Angel Aguilar-Luis
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
- Corresponding authors. School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru.
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Durango-Chavez HV, Toro-Huamanchumo CJ, Silva-Caso W, Martins-Luna J, Aguilar-Luis MA, del Valle-Mendoza J, Puyen ZM. Oropouche virus infection in patients with acute febrile syndrome: Is a predictive model based solely on signs and symptoms useful? PLoS One 2022; 17:e0270294. [PMID: 35881626 PMCID: PMC9321406 DOI: 10.1371/journal.pone.0270294] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 06/08/2022] [Indexed: 11/18/2022] Open
Abstract
Background
Oropouche fever is an infectious disease caused by the Oropouche virus (OROV). The diagnosis and prediction of the clinical picture continue to be a great challenge for clinicians who manage patients with acute febrile syndrome. Several symptoms have been associated with OROV virus infection in patients with febrile syndrome; however, to date, there is no clinical prediction rule, which is a fundamental tool to help the approach of this infectious disease.
Objective
To assess the performance of a prediction model based solely on signs and symptoms to diagnose Oropouche virus infection in patients with acute febrile syndrome.
Materials and methods
Validation study, which included 923 patients with acute febrile syndrome registered in the Epidemiological Surveillance database of three arbovirus endemic areas in Peru.
Results
A total of 97 patients (19%) were positive for OROV infection in the development group and 23.6% in the validation group. The area under the curve was 0.65 and the sensitivity, specificity, PPV, NPV, LR + and LR- were 78.2%, 35.1%, 27.6%, 83.6%, 1.20 and 0.62, respectively.
Conclusions
The development of a clinical prediction model for the diagnosis of Oropouche based solely on signs and symptoms does not work well. This may be due to the fact that the symptoms are nonspecific and related to other arbovirus infections, which confuse and make it difficult to predict the diagnosis, especially in endemic areas of co-infection of these diseases. For this reason, epidemiological surveillance of OROV in various settings using laboratory tests such as PCR is important.
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Affiliation(s)
| | - Carlos J. Toro-Huamanchumo
- Universidad San Ignacio de Loyola, Unidad para la Generación y Síntesis de Evidencias en Salud, Lima, Peru
- Clínica Avendaño, Unidad de Investigación Multidisciplinaria, Lima, Peru
| | - Wilmer Silva-Caso
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Johanna Martins-Luna
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Miguel Angel Aguilar-Luis
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Juana del Valle-Mendoza
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
- * E-mail: (ZMP); (JVM)
| | - Zully M. Puyen
- School of Medicine, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Instituto Nacional de Salud, Lima, Peru
- * E-mail: (ZMP); (JVM)
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Castañeda-Ribeyro A, Martins-Luna J, Verne E, Aguila-Luis MA, Silva-Caso W, Ugarte C, Carrillo-Ng H, Cornejo-Tapia A, Tarazona-Castro Y, del Valle-Mendoza J. High prevalence and clinical characteristics of respiratory infection by human rhinovirus in children from Lima-Peru during years 2009–2010. PLoS One 2022; 17:e0271044. [PMID: 35839227 PMCID: PMC9286243 DOI: 10.1371/journal.pone.0271044] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 06/22/2022] [Indexed: 11/18/2022] Open
Abstract
Introduction
Human rhinovirus is a major cause of acute respiratory infections (ARIs) worldwide. Epidemiological data on human rhinovirus (RV) in Peru is still scarce, as well as its role in respiratory infections in children. Therefore, the aim of this study was to describe the prevalence of rhinovirus and to identify the circulating species in nasopharyngeal swabs from children with acute respiratory infections.
Materials and methods
We analyzed nasopharyngeal swab samples that were collected from children younger than 17 years old, who had a clinical diagnosis of ARI from the “Hospital Nacional Cayetano Heredia” between May 2009 and December 2010. The original study recruited 767 inpatients with ARI, 559 samples of which were included and analyzed in the current study. Detection of rhinovirus and determination of rhinovirus species were characterized by PCR.
Results
Rhinovirus was detected in 42.22% samples (236/559), RV-A was detected in 10.17% (24/236) of the cases, RV-B in 16.53% (39/236), and RV-C in 73.31% (173/236). The age group with the highest number of cases was the 0–5 months group with 45.97%, followed by the 1–5 years group with 25.22%. Most of the positive RV cases, i.e., 86.44% (204/236), were hospitalized. The most common signs and symptoms found in patients who tested positive for RV were cough (72.88%), fever (68.64%), rhinorrhea (68.22%), and respiratory distress (61.44%). Infection with RV-A was associated with wheezing (p = 0.02). Furthermore, RV-C was related to cough (p = 0.01), wheezing (p = 0.002), and conjunctival injection (p = 0.03). A peak in RV-C cases was found in March (32 cases in 2010); June (18 cases in 2009 and 12 cases in 2010), which corresponds to the fall season in Peru; and also November (17 cases in 2009 and 4 cases in 2010), which corresponds to spring. RV-A and RV-B cases were constant throughout the year.
Conclusion
In conclusion, we found a high prevalence of rhinovirus C infection among pediatric patients with acute respiratory infections in Lima, Peru. This viral infection was more common in children between 0 to 5 months old, and was associated with cough, wheezing, and conjunctival injection. Epidemiological surveillance of this virus should be strengthened/encouraged in Peru to determine its real impact on respiratory infections.
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Affiliation(s)
- Ariana Castañeda-Ribeyro
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Johanna Martins-Luna
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratory of Molecular Biology, Instituto de Investigación Nutricional, Lima, Peru
| | - Eduardo Verne
- School of Medicine Alberto Hurtado, Universidad Peruana Cayetano Heredia, Lima, Peru
- Pediatrics Service, Hospital Nacional Cayetano Heredia, Lima, Peru
| | - Miguel Angel Aguila-Luis
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratory of Molecular Biology, Instituto de Investigación Nutricional, Lima, Peru
| | - Wilmer Silva-Caso
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratory of Molecular Biology, Instituto de Investigación Nutricional, Lima, Peru
| | - Claudia Ugarte
- School of Medicine Alberto Hurtado, Universidad Peruana Cayetano Heredia, Lima, Peru
- Pediatrics Service, Hospital Nacional Cayetano Heredia, Lima, Peru
| | - Hugo Carrillo-Ng
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratory of Molecular Biology, Instituto de Investigación Nutricional, Lima, Peru
| | - Angela Cornejo-Tapia
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Yordi Tarazona-Castro
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratory of Molecular Biology, Instituto de Investigación Nutricional, Lima, Peru
| | - Juana del Valle-Mendoza
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratory of Molecular Biology, Instituto de Investigación Nutricional, Lima, Peru
- * E-mail:
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Tarazona-Castro Y, Troyes-Rivera L, Martins-Luna J, Cabellos-Altamirano F, Aguilar-Luis MA, Carrillo-Ng H, del Valle LJ, Kym S, Miranda-Maravi S, Silva-Caso W, Levy-Blitchtein S, del Valle-Mendoza J. Detection of SARS-CoV-2 antibodies in febrile patients from an endemic region of dengue and chikungunya in Peru. PLoS One 2022; 17:e0265820. [PMID: 35395015 PMCID: PMC8993000 DOI: 10.1371/journal.pone.0265820] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 03/08/2022] [Indexed: 01/08/2023] Open
Abstract
Introduction The rapid expansion of the novel SARS-CoV-2 virus has raised serious public health concerns due to the possibility of misdiagnosis in regions where arboviral diseases are endemic. We performed the first study in northern Peru to describe the detection of SARS-CoV-2 IgM antibodies in febrile patients with a suspected diagnosis of dengue and chikungunya fever. Materials and methods A consecutive cross-sectional study was performed in febrile patients attending primary healthcare centers from April 2020 through March 2021. Patients enrolled underwent serum sample collection for the molecular and serological detection of DENV and CHIKV. Also, serological detection of IgM antibodies against SARS-CoV-2 was performed. Results 464 patients were included during the study period, of which (40.51%) were positive for one pathogen, meanwhile (6.90%) presented co-infections between 2 or more pathogens. The majority of patients with monoinfections were positive for SARS-CoV-2 IgM with (73.40%), followed by DENV 18.09% and CHIKV (8.51%). The most frequent co-infection was DENV + SARS-CoV-2 with (65.63%), followed by DENV + CHIKV and DENV + CHIKV + SARS-CoV-2, both with (12.50%). The presence of polyarthralgias in hands (43.75%, p<0.01) and feet (31.25%, p = 0.05) were more frequently reported in patients with CHIKV monoinfection. Also, conjunctivitis was more common in patients positive for SARS-CoV-2 IgM (11.45%, p<0.01). The rest of the symptoms were similar among all the study groups. Conclusion SARS-CoV-2 IgM antibodies were frequently detected in acute sera from febrile patients with a clinical suspicion of arboviral disease. The presence of polyarthralgias in hands and feet may be suggestive of CHIKV infection. These results reaffirm the need to consider SARS-CoV-2 infection as a main differential diagnosis of acute febrile illness in arboviruses endemic areas, as well as to consider co-infections between these pathogens.
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Affiliation(s)
- Yordi Tarazona-Castro
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | | | - Johanna Martins-Luna
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | | | - Miguel Angel Aguilar-Luis
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Hugo Carrillo-Ng
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Luis J. del Valle
- Barcelona Research Center for Multiscale Science and Engineering, Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
| | - Sungmin Kym
- Division of Infectious Diseases, Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | | | - Wilmer Silva-Caso
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Saul Levy-Blitchtein
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Juana del Valle-Mendoza
- School of Medicine, Research Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
- * E-mail:
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Sanchez-Carbonel A, Mondragón B, López-Chegne N, Peña-Tuesta I, Huayan-Dávila G, Blitchtein D, Carrillo-Ng H, Silva-Caso W, Aguilar-Luis MA, del Valle-Mendoza J. The effect of the efflux pump inhibitor Carbonyl Cyanide m-Chlorophenylhydrazone (CCCP) on the susceptibility to imipenem and cefepime in clinical strains of Acinetobacter baumannii. PLoS One 2021; 16:e0259915. [PMID: 34919563 PMCID: PMC8682880 DOI: 10.1371/journal.pone.0259915] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 07/14/2021] [Accepted: 10/28/2021] [Indexed: 11/18/2022] Open
Abstract
Introduction In the last years the rapid expansion of multidrug-resistant A. baumannii strains have become a major health problem. Efflux pumps are a group of transport proteins that contribute to the development of antibiotic resistance. The aim of this study was to evaluate the effect of the efflux pump inhibitor carbonyl cyanide 3-chlorophenylhydrazone (CCCP) on the antimicrobial action of imipenem and cefepime on clinical strains of A. baumannii. Materials and methods A total of 49 non-duplicate clinical samples were collected during January through December of 2018 from patients hospitalized in the Hospital Regional Docente de Cajamarca. Of the 49 samples obtained, the confirmatory identification of A. baumannii was performed on 47 samples by molecular methods. The amplification of the blaOXA-51-like gene was carried out by polymerase chain reaction (PCR). The determination of the minimum inhibitory concentration (MIC) was calculated using the microdilution method in culture broth. The susceptibility to both antibiotics (cefepime and imipenem) was evaluated in the presence and absence of the inhibitor carbonyl cyanide 3-chlorophenylhydrazone (CCCP). Results A total of 47 strains of A. baumannii were isolated: 97.87% (46/47) were resistant to Imipenem, 2.13% (1/47) of them were classified as intermediate and none of these strains were susceptible. On the other hand, 51.06% (24/47) of isolates were resistant to cefepime; 19.15% (9/47) intermediate and 29.79% (14/47) susceptible. We considered a significant difference in antibiotic susceptibility if the MIC changed at least 4 dilutions, after the addition of the inhibitor. In the case of CCCP in addition to imipenem, 2.1% (1/47) had a significant change of 4 or more reductions in MIC, 59.6% (28/47) achieved a change equal or less than 3 dilutions and 17.0% (8/47) did not have any change. In the case of CCCP with cefepime the percentage of strains with the significant change of MIC was 8.5% (4/47). On the other hand, 53.2% (24/47) presented a reduction equal or less than 3 dilutions and 12.8% (6/47) did not show changes. Conclusion In conclusion, our results demonstrate that the use of CCCP may improve the antibiotic effect of imipenem and cefepime on clinical strains of A. baumannii. The relevance of this study is that it provides evidence that this efflux pump inhibitor may be an alternative treatment against multidrug-resistant A. baumannii.
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Affiliation(s)
- Alejandra Sanchez-Carbonel
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Belén Mondragón
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | | | - Isaac Peña-Tuesta
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | | | - Dora Blitchtein
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Hugo Carrillo-Ng
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Wilmer Silva-Caso
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Miguel Angel Aguilar-Luis
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
- * E-mail: (JVM); (MAAL)
| | - Juana del Valle-Mendoza
- School of Medicine, Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima, Peru
- * E-mail: (JVM); (MAAL)
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Alcántara R, Peñaranda K, Mendoza-Rojas G, Nakamoto JA, Martins-Luna J, del Valle-Mendoza J, Adaui V, Milón P. Unlocking SARS-CoV-2 detection in low- and middle-income countries. Cell Rep Methods 2021; 1:100093. [PMID: 34697612 PMCID: PMC8529268 DOI: 10.1016/j.crmeth.2021.100093] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 07/31/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022]
Abstract
Low- and middle-income countries (LMICs) are significantly affected by SARS-CoV-2, partially due to their limited capacity for local production and implementation of molecular testing. Here, we provide detailed methods and validation of a molecular toolkit that can be readily produced and deployed using laboratory equipment available in LMICs. Our results show that lab-scale production of enzymes and nucleic acids can supply over 50,000 tests per production batch. The optimized one-step RT-PCR coupled to CRISPR-Cas12a-mediated detection showed a limit of detection of 102 ge/μL in a turnaround time of 2 h. The clinical validation indicated an overall sensitivity of 80%-88%, while for middle and high viral load samples (Cq ≤ 31) the sensitivity was 92%-100%. The specificity was 96%-100% regardless of viral load. Furthermore, we show that the toolkit can be used with the mobile laboratory Bento Lab, potentially enabling LMICs to implement detection services in unattended remote regions.
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Affiliation(s)
- Roberto Alcántara
- Centre for Research and Innovation, Health Sciences Faculty, Universidad Peruana de Ciencias Aplicadas (UPC), Lima 15023, Peru
| | - Katherin Peñaranda
- Centre for Research and Innovation, Health Sciences Faculty, Universidad Peruana de Ciencias Aplicadas (UPC), Lima 15023, Peru
| | - Gabriel Mendoza-Rojas
- Centre for Research and Innovation, Health Sciences Faculty, Universidad Peruana de Ciencias Aplicadas (UPC), Lima 15023, Peru
| | - Jose A. Nakamoto
- Centre for Research and Innovation, Health Sciences Faculty, Universidad Peruana de Ciencias Aplicadas (UPC), Lima 15023, Peru
| | - Johanna Martins-Luna
- Centre for Research and Innovation, Health Sciences Faculty, Universidad Peruana de Ciencias Aplicadas (UPC), Lima 15023, Peru
- Laboratorio de Biología Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Juana del Valle-Mendoza
- Centre for Research and Innovation, Health Sciences Faculty, Universidad Peruana de Ciencias Aplicadas (UPC), Lima 15023, Peru
- Laboratorio de Biología Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Vanessa Adaui
- Centre for Research and Innovation, Health Sciences Faculty, Universidad Peruana de Ciencias Aplicadas (UPC), Lima 15023, Peru
| | - Pohl Milón
- Centre for Research and Innovation, Health Sciences Faculty, Universidad Peruana de Ciencias Aplicadas (UPC), Lima 15023, Peru
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Pérez-Lazo G, Silva-Caso W, del Valle-Mendoza J, Morales-Moreno A, Ballena-López J, Soto-Febres F, Martins-Luna J, Carrillo-Ng H, del Valle LJ, Kym S, Aguilar-Luis MA, Peña-Tuesta I, Tinco-Valdez C, Illescas LR. Identification of Coinfections by Viral and Bacterial Pathogens in COVID-19 Hospitalized Patients in Peru: Molecular Diagnosis and Clinical Characteristics. Antibiotics (Basel) 2021; 10:1358. [PMID: 34827296 PMCID: PMC8615059 DOI: 10.3390/antibiotics10111358] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 09/30/2021] [Revised: 10/28/2021] [Accepted: 11/02/2021] [Indexed: 01/14/2023] Open
Abstract
The impact of respiratory coinfections in COVID-19 is still not well understood despite the growing evidence that consider coinfections greater than expected. A total of 295 patients older than 18 years of age, hospitalized with a confirmed diagnosis of moderate/severe pneumonia due to SARS-CoV-2 infection (according to definitions established by the Ministry of Health of Peru) were enrolled during the study period. A coinfection with one or more respiratory pathogens was detected in 154 (52.2%) patients at hospital admission. The most common coinfections were Mycoplasma pneumoniae (28.1%), Chlamydia pneumoniae (8.8%) and with both bacteria (11.5%); followed by Adenovirus (1.7%), Mycoplasma pneumoniae/Adenovirus (0.7%), Chlamydia pneumoniae/Adenovirus (0.7%), RSV-B/Chlamydia pneumoniae (0.3%) and Mycoplasma pneumoniae/Chlamydia pneumoniae/Adenovirus (0.3%). Expectoration was less frequent in coinfected individuals compared to non-coinfected (5.8% vs. 12.8%). Sepsis was more frequent among coinfected patients than non-coinfected individuals (33.1% vs. 20.6%) and 41% of the patients who received macrolides empirically were PCR-positive for Mycoplasma pneumoniae and Chlamydia pneumoniae.
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Affiliation(s)
- Giancarlo Pérez-Lazo
- Division of Infectious Diseases, Guillermo Almenara Irigoyen National Hospital-EsSalud, Lima 15033, Peru; (A.M.-M.); (J.B.-L.); (F.S.-F.); (L.R.I.)
| | - Wilmer Silva-Caso
- Centre of Research and Innovation, Faculty of Health Sciences, School of Medicine, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (I.P.-T.); (C.T.-V.)
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima 15024, Peru;
| | - Juana del Valle-Mendoza
- Centre of Research and Innovation, Faculty of Health Sciences, School of Medicine, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (I.P.-T.); (C.T.-V.)
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima 15024, Peru;
| | - Adriana Morales-Moreno
- Division of Infectious Diseases, Guillermo Almenara Irigoyen National Hospital-EsSalud, Lima 15033, Peru; (A.M.-M.); (J.B.-L.); (F.S.-F.); (L.R.I.)
| | - José Ballena-López
- Division of Infectious Diseases, Guillermo Almenara Irigoyen National Hospital-EsSalud, Lima 15033, Peru; (A.M.-M.); (J.B.-L.); (F.S.-F.); (L.R.I.)
| | - Fernando Soto-Febres
- Division of Infectious Diseases, Guillermo Almenara Irigoyen National Hospital-EsSalud, Lima 15033, Peru; (A.M.-M.); (J.B.-L.); (F.S.-F.); (L.R.I.)
| | - Johanna Martins-Luna
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima 15024, Peru;
- Facultad de Ciencias de la Salud, Universidad Tecnológica del Perú, Lima 15046, Peru
| | - Hugo Carrillo-Ng
- Centre of Research and Innovation, Faculty of Health Sciences, School of Medicine, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (I.P.-T.); (C.T.-V.)
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima 15024, Peru;
| | - Luís J. del Valle
- Barcelona Research Center for Multiscale Science and Engineering, Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya (UPC), 08034 Barcelona, Spain;
| | - Sungmin Kym
- Korea International Cooperation for Infectious Diseases, Chungnam National University College of Medicine, Daejeon 305764, Korea;
| | - Miguel Angel Aguilar-Luis
- Centre of Research and Innovation, Faculty of Health Sciences, School of Medicine, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (I.P.-T.); (C.T.-V.)
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima 15024, Peru;
| | - Issac Peña-Tuesta
- Centre of Research and Innovation, Faculty of Health Sciences, School of Medicine, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (I.P.-T.); (C.T.-V.)
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima 15024, Peru;
| | - Carmen Tinco-Valdez
- Centre of Research and Innovation, Faculty of Health Sciences, School of Medicine, Universidad Peruana de Ciencias Aplicadas, Lima 15023, Peru; (H.C.-N.); (M.A.A.-L.); (I.P.-T.); (C.T.-V.)
- Laboratorio de Biologia Molecular, Instituto de Investigación Nutricional, Lima 15024, Peru;
| | - Luis Ricardo Illescas
- Division of Infectious Diseases, Guillermo Almenara Irigoyen National Hospital-EsSalud, Lima 15033, Peru; (A.M.-M.); (J.B.-L.); (F.S.-F.); (L.R.I.)
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10
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del Valle-Mendoza J, Aguilar-Luis M, Carrillo-Ng H, Kym S, Silva-Caso W, Verne E, del Valle L, Bazán-Mayra J, Zavaleta-Gavidia V, Cornejo-Pacherres D, Tarazona-Castro Y, Aquino-Ortega R, Cornejo-Tapia A. Detection of dengue virus serotype 3 in Cajamarca, Peru: Molecular diagnosis and clinical characteristics. ASIAN PAC J TROP MED 2021. [DOI: 10.4103/1995-7645.326257] [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: 11/04/2022] Open
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11
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Coronado-López S, Caballero-García S, Aguilar-Luis MA, Mazulis F, del Valle-Mendoza J. Antibacterial Activity and Cytotoxic Effect of Pelargonium peltatum (Geranium) against Streptococcus mutans and Streptococcus sanguinis. Int J Dent 2018; 2018:2714350. [PMID: 30622566 PMCID: PMC6304195 DOI: 10.1155/2018/2714350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 09/06/2018] [Accepted: 11/12/2018] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE To evaluate the in vitro antibacterial and cytotoxic properties of the methanolic extract of Pelargonium peltatum (geranium) against Streptococcus mutans (ATCC 25175) and Streptococcus sanguinis (ATCC 10556). METHODS Three extracts of P. peltatum were prepared using the leaf, stem, and root. Nine independent assays were prepared for each type of extract with chlorhexidine at 0.12% as the positive control. The agar diffusion method was performed to determine the antibacterial properties of each extract. The minimum inhibitory concentration (MIC) was determined using the microdilution method, and the cytotoxicity was analyzed by means of the MTT reduction test using a MDCK cell line. RESULTS The root extract had the highest antibacterial effect with a mean result of (27.68 ± 0.97) mm and (30.80 ± 0.55) mm against S. mutans and S. sanguinis, respectively. The minimum inhibitory concentration for the leaf and root extracts was 250 mg/mL for S. mutans and 125 mg/mL for S. sanguinis. Cytotoxicity assays showed that both extracts had a low cytotoxicity at high concentrations. The cellular viability was highest for the root extract at 95.3% followed by the stem extract at 80.8% and finally the leaf extract with 75.4%. CONCLUSIONS These findings show the antibacterial properties of the methanolic extracts of P. pelargonium against S. mutans and S. sanguinis. These extracts were not cytotoxic at high concentrations.
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Affiliation(s)
- Samantha Coronado-López
- School of Dentistry, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Stefany Caballero-García
- School of Dentistry, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Miguel Angel Aguilar-Luis
- School of Medicine, Research Center and Innovation of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biología Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Fernando Mazulis
- School of Medicine, Research Center and Innovation of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biología Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Juana del Valle-Mendoza
- School of Medicine, Research Center and Innovation of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Laboratorio de Biología Molecular, Instituto de Investigación Nutricional, Lima, Peru
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12
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Alva-Urcia C, Aguilar-Luis MA, Palomares-Reyes C, Silva-Caso W, Suarez-Ognio L, Weilg P, Manrique C, Vasquez-Achaya F, del Valle LJ, del Valle-Mendoza J. Emerging and reemerging arboviruses: A new threat in Eastern Peru. PLoS One 2017; 12:e0187897. [PMID: 29136650 PMCID: PMC5685628 DOI: 10.1371/journal.pone.0187897] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [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: 02/19/2017] [Accepted: 10/27/2017] [Indexed: 12/24/2022] Open
Abstract
Background Arboviral diseases are one of the most common causes of acute febrile illness (AFI) and a significant health problem in South America. In Peru, laboratory etiologic identification of these infections occurs in less than 50% of cases, leading to underdiagnoses of important emerging arboviruses. Aim To assess the prevalence of the Dengue (DENV), Oropouche (OROV), Chikungunya (CHIKV), Mayaro (MAYV) and Zika (ZIKV) viruses in patients with acute febrile illness from Puerto Maldonado (Peru). Methodology Serum samples were obtained from patients with AFI during January 2016 to March 2016. A total of 139 specimens were analyzed for the presence of DENV, OROV, CHIKV, MAYV, and ZIKV using polymerase chain reaction (PCR). Results CHIKV in 9.4% and OROV in 8.6% were the most prevalent arboviruses, followed by DENV and ZIKV, with a prevalence of 6.5% and 5%, respectively. Among all patients, the most common symptoms accompanying fever were headaches 79.9%, muscle pain 65.5% and joint pain 63.3%. Conclusions During this short 3-month period, 4 arboviruses were detected by PCR, CHIKV and OROV being the most common arboviruses in Puerto Maldonado (Peru). Thus, it is crucial to include OROV detection in the national health surveillance. Furthermore, the etiologic clinical diagnosis of arboviral infections is not possible due to the low specificity of symptoms; therefore an increase of cases confirmed by molecular diagnostic methods will enhance arboviral surveillance in Peru.
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Affiliation(s)
- Carlos Alva-Urcia
- School of Medicine, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Miguel Angel Aguilar-Luis
- School of Medicine, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Perú
- Laboratorio de Biología Molecular, Instituto de Investigación Nutricional (IIN), Lima, Perú
- * E-mail: (JdVM); (MAAL)
| | - Carlos Palomares-Reyes
- School of Medicine, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Perú
| | - Wilmer Silva-Caso
- School of Medicine, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Perú
- Laboratorio de Biología Molecular, Instituto de Investigación Nutricional (IIN), Lima, Perú
| | - Luis Suarez-Ognio
- School of Medicine, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Pablo Weilg
- Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Perú
| | - Carlos Manrique
- Dirección Regional de Salud Madre de Dios (DIRESA-Madre de Dios), Madre de Dios, Peru
| | - Fernando Vasquez-Achaya
- School of Medicine, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Perú
| | - Luis J. del Valle
- Barcelona Research Center for Multiscale Science and Engineering, Departament d’Enginyeria Quıímica, EEBE, Universidad Politécnica de Catalunya (UPC), Barcelona Tech, Barcelona, Spain
| | - Juana del Valle-Mendoza
- School of Medicine, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Research and Innovation Center of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Perú
- Laboratorio de Biología Molecular, Instituto de Investigación Nutricional (IIN), Lima, Perú
- * E-mail: (JdVM); (MAAL)
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13
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Pons MJ, Gomes C, Aguilar R, Barrios D, Aguilar-Luis MA, Ruiz J, Dobaño C, del Valle-Mendoza J, Moncunill G. Immunosuppressive and angiogenic cytokine profile associated with Bartonella bacilliformis infection in post-outbreak and endemic areas of Carrion's disease in Peru. PLoS Negl Trop Dis 2017. [PMID: 28628613 PMCID: PMC5491314 DOI: 10.1371/journal.pntd.0005684] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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] [Indexed: 11/18/2022] Open
Abstract
Analysis of immune responses in Bartonella bacilliformis carriers are needed to understand acquisition of immunity to Carrion's disease and may allow identifying biomarkers associated with bacterial infection and disease phases. Serum samples from 144 healthy subjects from 5 villages in the North of Peru collected in 2014 were analyzed. Four villages had a Carrion's disease outbreak in 2013, and the other is a traditionally endemic area. Thirty cytokines, chemokines and growth factors were determined in sera by fluorescent bead-based quantitative suspension array technology, and analyzed in relation to available data on bacteremia quantified by RT-PCR, and IgM and IgG levels measured by ELISA against B. bacilliformis lysates. The presence of bacteremia was associated with low concentrations of HGF (p = 0.005), IL-15 (p = 0.002), IL-6 (p = 0.05), IP-10 (p = 0.008), MIG (p = 0.03) and MIP-1α (p = 0.03). In multi-marker analysis, the same and further TH1-related and pro-inflammatory biomarkers were inversely associated with infection, whereas angiogenic chemokines and IL-10 were positively associated. Only EGF and eotaxin showed a moderate positive correlation with bacteremia. IgM seropositivity, which reflects a recent acute infection, was associated with lower levels of eotaxin (p = 0.05), IL-6 (p = 0.001), and VEGF (p = 0.03). Only GM-CSF and IL-10 concentrations were positively associated with higher levels of IgM (p = 0.01 and p = 0.007). Additionally, IgG seropositivity and levels were associated with high levels of angiogenic markers VEGF (p = 0.047) and eotaxin (p = 0.006), respectively. Our findings suggest that B. bacilliformis infection causes immunosuppression, led in part by overproduction of IL-10. This immunosuppression probably contributes to the chronicity of asymptomatic infections favoring B. bacilliformis persistence in the host, allowing the subsequent transmission to the vector. In addition, angiogenic markers associated with bacteremia and IgG levels may be related to the induction of endothelial cell proliferation in cutaneous lesions during chronic infections, being possible candidate biomarkers of asymptomatic infections.
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Affiliation(s)
- Maria J. Pons
- Centro de Investigación e Innovación de la Facultad de Ciencias de la Salud de la Universidad Peruana de Ciencias Aplicadas, Lima, Perú
- Instituto de Investigación Nutricional, Lima, Perú
| | - Cláudia Gomes
- ISGlobal, Barcelona Centre for International Health Research, Hospital Clínic - Universitat de Barcelona, Catalonia, Spain
| | - Ruth Aguilar
- ISGlobal, Barcelona Centre for International Health Research, Hospital Clínic - Universitat de Barcelona, Catalonia, Spain
| | - Diana Barrios
- ISGlobal, Barcelona Centre for International Health Research, Hospital Clínic - Universitat de Barcelona, Catalonia, Spain
| | - Miguel Angel Aguilar-Luis
- Centro de Investigación e Innovación de la Facultad de Ciencias de la Salud de la Universidad Peruana de Ciencias Aplicadas, Lima, Perú
- Instituto de Investigación Nutricional, Lima, Perú
| | - Joaquim Ruiz
- ISGlobal, Barcelona Centre for International Health Research, Hospital Clínic - Universitat de Barcelona, Catalonia, Spain
| | - Carlota Dobaño
- ISGlobal, Barcelona Centre for International Health Research, Hospital Clínic - Universitat de Barcelona, Catalonia, Spain
| | - Juana del Valle-Mendoza
- Centro de Investigación e Innovación de la Facultad de Ciencias de la Salud de la Universidad Peruana de Ciencias Aplicadas, Lima, Perú
- Instituto de Investigación Nutricional, Lima, Perú
- * E-mail: (GM); (JdV)
| | - Gemma Moncunill
- ISGlobal, Barcelona Centre for International Health Research, Hospital Clínic - Universitat de Barcelona, Catalonia, Spain
- * E-mail: (GM); (JdV)
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14
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del Valle-Mendoza J, Orellana-Peralta F, Marcelo-Rodríguez A, Verne E, Esquivel-Vizcarra M, Silva-Caso W, Aguilar-Luis MA, Weilg P, Casabona-Oré V, Ugarte C, del Valle LJ. High Prevalence of Mycoplasma pneumoniae and Chlamydia pneumoniae in Children with Acute Respiratory Infections from Lima, Peru. PLoS One 2017; 12:e0170787. [PMID: 28129377 PMCID: PMC5271412 DOI: 10.1371/journal.pone.0170787] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [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: 06/10/2016] [Accepted: 01/11/2017] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Mycoplasma pneumoniae and Chlamydia pneumoniae are atypical pathogens responsible for pneumonia and a leading cause of morbidity and mortality in low income countries. The study objective is to determine the prevalence of this pathogens in Peruvian children with acute respiratory infections. METHODS A consecutive cross-sectional study was conducted in Lima, Peru from May 2009 to September 2010. A total of 675 children admitted with clinical diagnoses of acute respiratory infections were tested for Mycoplasma pneumoniae and Chlamydia pneumoniae detection by polymerase chain reaction (PCR), and clinical symptoms were registered by the attending physician. RESULTS Mycoplasma pneumonia was detected in 25.19% (170/675) of nasopharyngeal samples and Chlamydia pneumonia in 10.52% (71/675). The most common symptoms in patients with these atypical pathogens were rhinorrhea, cough and fever. A higher prevalence of Mycoplasma pneumoniae cases were registered in summer, between December 2009 and March 2010. CONCLUSIONS Mycoplasma pneumoniae and Chlamydia pneumonia are a significant cause of morbidity in Peruvian children with acute respiratory infections (ARI). Further studies should evaluate the use of reliable techniques such as PCR in Peru in order to avoid underdiagnoses of these atypical pathogens.
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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-UPC, Lima, Peru
- Instituto de Investigación Nutricional, Lima, Peru
| | - Fiorella Orellana-Peralta
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences. Universidad Peruana de Ciencias Aplicadas-UPC, Lima, Peru
- Instituto de Investigación Nutricional, Lima, Peru
| | | | | | | | - Wilmer Silva-Caso
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences. Universidad Peruana de Ciencias Aplicadas-UPC, Lima, Peru
| | - Miguel Angel Aguilar-Luis
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences. Universidad Peruana de Ciencias Aplicadas-UPC, Lima, Peru
- Instituto de Investigación Nutricional, Lima, Peru
| | - Pablo Weilg
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences. Universidad Peruana de Ciencias Aplicadas-UPC, Lima, Peru
| | - Verónica Casabona-Oré
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences. Universidad Peruana de Ciencias Aplicadas-UPC, Lima, Peru
- Instituto de Investigación Nutricional, Lima, Peru
| | | | - Luis J. del Valle
- Centre de Biotecnologia Molecular (CEBIM), Departament d’Enginyeria Química, ETSEIB, Universitat Politècnica de Catalunya (UPC) Barcelona Tech, Barcelona, Spain
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15
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Gomes C, Palma N, Pons MJ, Magallón-Tejada A, Sandoval I, Tinco-Valdez C, Gutarra C, del Valle-Mendoza J, Ruiz J, Matsuoka M. Succinyl-CoA Synthetase: New Antigen Candidate of Bartonella bacilliformis. PLoS Negl Trop Dis 2016; 10:e0004989. [PMID: 27627803 PMCID: PMC5023120 DOI: 10.1371/journal.pntd.0004989] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 08/19/2016] [Indexed: 11/29/2022] Open
Abstract
Background Bartonella bacilliformis is the causative agent of Carrion’s disease, a neglected illness with mortality rates of 40–85% in the absence of treatment. The lack of a diagnostic technique to overcome misdiagnosis and treat asymptomatic carriers is of note. This study aimed to identify new B. bacilliformis antigenic candidates that could lead to a new diagnostic tool able to be implemented in endemic rural areas. Methodology/Principal Findings Blood (n = 198) and serum (n = 177) samples were collected in northern Peru. Clinical data were recorded. Specific 16S rRNA amplification by RT-PCR, IFA and ELISA for IgM/IgG with whole cells as antigens was done. Western blot analysis and N-terminal amino acid sequencing detected seroreactive proteins. ELISAs for IgM/IgG for the antigenic candidates were performed. Of the population 33.3% reported at least one symptom compatible with Carrion’s disease; 25.4% (IFA), 27.1% (ELISA-IgG), 33.9% (ELISA-IgM) and 38.9% (RT-PCR) of samples were positive. Four proteins were considered potential antigenic candidates, including two new antigenic candidates, succinyl-CoA synthetase subunit α (SCS-α) and succinyl-CoA synthetase subunit β (SCS-β). On Western blot both Pap31 and SCS-α interacted with IgM, while GroEL and SCS-β interacted with IgG. The presence of specific antibodies against the antigenic candidates varied from 34.5% (IgG against SCS-α) to 97.2% (IgM against Pap31). Conclusions/Significance RT-PCR and the high levels of positivity for specific ELISAs demonstrate high levels of B. bacilliformis exposure and asymptomatic carriers among inhabitants. The new antigens identified might be used as a new rapid diagnostic tool to diagnose acute Carrion’s disease and identify asymptomatic carriers. B. bacilliformis is a neglected pathogen causing Carrion’s disease, a febrile illness with two distinct phases, the acute so-called Oroya fever that can be life-threatening, and the chronic so-called Peruvian wart. This illness is currently limited to poor inhabitants of Andean valleys of Ecuador, Colombia and Peru and for this reason is understudied. One of the most significant limitations is the lack of an adequate diagnostic tool able to be implemented in rural areas. It is imperative to unequivocally detect cases of Carrion’s disease as well as identify asymptomatic carriers who perpetuate the illness. The present study describes the identification of 4 antigenic candidates potentially useful in the future development of a rapid diagnostic test. Moreover, 2 of these candidates have not been described in the literature. Additionally, four post-outbreak and one endemic community were studied and characterized. The identification of new antigens is essential for the development of a cheap, sensitive diagnostic tool, able to be implemented in low-income areas.
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Affiliation(s)
- Cláudia Gomes
- ISGlobal, Barcelona Centre for International Health Research (CRESIB), Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
- * E-mail:
| | - Noemí Palma
- ISGlobal, Barcelona Centre for International Health Research (CRESIB), Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Maria J. Pons
- Centro de Investigación e Innovación, Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Ariel Magallón-Tejada
- ISGlobal, Barcelona Centre for International Health Research (CRESIB), Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | | | - Carmen Tinco-Valdez
- Centro de Investigación e Innovación, Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Instituto de Investigación Nutricional, Lima, Peru
| | | | - Juana del Valle-Mendoza
- Centro de Investigación e Innovación, Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Instituto de Investigación Nutricional, Lima, Peru
| | - Joaquim Ruiz
- ISGlobal, Barcelona Centre for International Health Research (CRESIB), Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
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Camere-Colarossi R, Ulloa-Urizar G, Medina-Flores D, Caballero-García S, Mayta-Tovalino F, del Valle-Mendoza J. Antibacterial activity of Myrciaria dubia (Camu camu) against Streptococcus mutans and Streptococcus sanguinis. Asian Pac J Trop Biomed 2016. [DOI: 10.1016/j.apjtb.2016.07.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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17
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Tantaléan-Yépez D, Sánchez-Carbonel J, Ulloa-Urizar G, Aguilar-Luis MA, Espinoza-Morales D, Silva-Caso W, Pons MJ, del Valle-Mendoza J. Arboviruses emerging in Peru: Need for early detection of febrile syndrome during El Niño episodes. ASIAN PAC J TROP MED 2016; 9:819-20. [DOI: 10.1016/j.apjtm.2016.06.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 06/16/2016] [Accepted: 06/21/2016] [Indexed: 10/21/2022] Open
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18
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Pons MJ, Silva-Caso W, del Valle-Mendoza J, Ruiz J. Multi-Locus Sequence Typing of Bartonella bacilliformis DNA Performed Directly from Blood of Patients with Oroya's Fever During a Peruvian Outbreak. PLoS Negl Trop Dis 2016; 10:e0004391. [PMID: 26824740 PMCID: PMC4732615 DOI: 10.1371/journal.pntd.0004391] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 09/03/2015] [Accepted: 12/23/2015] [Indexed: 11/23/2022] Open
Abstract
Background Bartonella bacilliformis is the etiological agent of Carrion’s disease, a neglected tropical poverty-linked illness. This infection is endemic of Andean regions and it is estimated that approximately 1.7 million of South Americans are at risk. This bacterium is a fastidious slow growing microorganism, which is difficult and cumbersome to isolate from clinical sources, thereby hindering the availability of phylogenetic relationship of clinical samples. The aim of this study was to perform Multi Locus Sequence Typing of B. bacilliformis directly in blood from patients diagnosed with Oroya fever during an outbreak in Northern Peru. Methodology/Principal Findings DNA extracted among blood samples from patients diagnosed with Oroya’s fever were analyzed with MLST, with the amplification of 7 genetic loci (ftsZ, flaA, ribC, rnpB, rpoB, bvrR and groEL) and a phylogenetic analysis of the different Sequence Types (ST) was performed. A total of 4 different ST were identified. The most frequently found was ST1 present in 66% of samples. Additionally, two samples presented a new allelic profile, belonging to new STs (ST 9 and ST 10), which were closely related to ST1. Conclusions/Significance The present data demonstrate that B. bacilliformis MLST studies may be possible directly from blood samples, being a promising approach for epidemiological studies. During the outbreak the STs of B. bacilliformis were found to be heterogeneous, albeit closely related, probably reflecting the evolution from a common ancestor colonizing the area. Additional studies including new samples and areas are needed, in order to obtain better knowledge of phylogenetic scenario B. bacilliformis. The bacteria Bartonella bacilliformis is the etiological agent of Carrion’s disease, which is a neglected poverty-related disease, related to Mountain Andean valleys of Peru, Colombia and Ecuador. This disease, in absence of treatment presents a high mortality during the acute phase, called Oroya’s Fever. The second phase is characterized by the development of dermal eruptions, known as “Verruga peruana” (Peruvian wart). This bacterium is a fastidious slow growing microorganism, being difficult and cumbersome to isolate from clinical sources. Then, the available data about phylogenetic relationship in clinical samples are really scarce, but suggesting high variability. The aim of the study was to perform direct blood analysis of B. bacilliformis Multi Locus Sequence Typing (MLST), a genotyping tool, in patients with Oroya fever during an outbreak. The present study demonstrates that the direct blood PCR, followed by nucleotide sequencing and MLST is a technique useful in the phylogenic characterization of this fastidious microorganism endemic from Andean regions. In this study, we demonstrate that the outbreak of Oroya’s fever was caused by closely related Sequence Typing (ST) microorganisms and, additionally, new STs have been described.
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Affiliation(s)
- Maria J. Pons
- Centro de Investigación de la Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas (UPC), Lima, Peru
| | - Wilmer Silva-Caso
- Centro de Investigación de la Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas (UPC), Lima, Peru
| | - Juana del Valle-Mendoza
- Centro de Investigación de la Facultad de Ciencias de la Salud, Universidad Peruana de Ciencias Aplicadas (UPC), Lima, Peru
- * E-mail: , (JR); (JdV)
| | - Joaquim Ruiz
- ISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic – Universitat de Barcelona, Spain
- * E-mail: , (JR); (JdV)
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