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Silva-Caso W, Espinoza-Espíritu W, Espejo-Evaristo J, Carrillo-Ng H, Aguilar-Luis MA, Stimmler L, Del Valle-Mendoza J. Geographical distribution, evaluation of risk of dengue and its relationship with the El Niño Southern Oscillation in an endemic region of Peru between 2004 and 2015. BMC Res Notes 2019; 12:498. [PMID: 31409399 PMCID: PMC6692953 DOI: 10.1186/s13104-019-4537-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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] [Received: 06/12/2019] [Accepted: 08/02/2019] [Indexed: 12/14/2022] Open
Abstract
Objective To determine the geographical distribution and risk stratification of dengue infection in an endemic region of Peru, and its relationship with the presence of El Niño Southern Oscillation (ENSO). Results For the analysis, the definition and information about the ENSO events in Peru was obtained from the SENAMHI and IGP reports. The geographical distribution of dengue cases in the territory comprising the 11 districts is homogeneous. There were 1 498 confirmed cases of dengue reported, the highest incidence was determined in Puerto Inca where it reached an incidence of 3210.14/100,000 hab. Of the 11 districts, 2 were classified as a high risk of transmission, 3 as moderate risk, 3 as low risk and in 3 of them the risk of virus transmission could not be determined. Electronic supplementary material The online version of this article (10.1186/s13104-019-4537-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wilmer Silva-Caso
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos cuadra 2, Chorrillos, Lima, Peru. .,Centro de Salud Las Palmas - Red de Salud Leoncio Prado - Ministerio de Salud, Huanuco, Peru.
| | - Walter Espinoza-Espíritu
- Puesto de Salud Tambillo Grande, Red de Salud Leoncio Prado, Ministerio de Salud, Tingo María, Peru.,Instituto Superior Tecnológico Público Naranjillo, Tingo María, Peru
| | - Jaquelin Espejo-Evaristo
- Salud Pública y Gestión Sanitaria, Universidad Nacional Hermilio Valdizán, Huanuco, Peru.,Puesto de Salud Alto San Juan de Tulumayo - Red de Salud Leoncio Prado - Ministerio de Salud, Huanuco, 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 cuadra 2, Chorrillos, Lima, Peru.,Instituto de Investigación Nutricional, Lima, Peru
| | | | - 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 cuadra 2, Chorrillos, Lima, Peru. .,Instituto de Investigación Nutricional, Lima, Peru.
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Silva-Caso W, Aguilar-Luis MA, Palomares-Reyes C, Mazulis F, Weilg C, Del Valle LJ, Espejo-Evaristo J, Soto-Febres F, Martins-Luna J, Del Valle-Mendoza J. First outbreak of Oropouche Fever reported in a non-endemic western region of the Peruvian Amazon: Molecular diagnosis and clinical characteristics. Int J Infect Dis 2019; 83:139-144. [PMID: 30991139 DOI: 10.1016/j.ijid.2019.04.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 01/30/2019] [Revised: 04/08/2019] [Accepted: 04/10/2019] [Indexed: 10/27/2022] Open
Abstract
INTRODUCTION Oropouche fever is an under-reported and emerging infectious disease caused by Oropouche virus (OROV). Its incidence is under-estimated mainly due to clinical similarities with other endemic arboviral diseases and the lack of specific diagnostic tests. We report the first outbreak of Oropouche fever in a western region of the Peruvian Amazon in Huanuco, Peru. METHODS A transversal study was carried out during an outbreak in the western Region of Huanuco, Peru between January and July of 2016. Blood samples of 268 patients with acute febrile syndrome were collected and analyzed for OROV via RT- PCR and genetic sequencing. RESULTS Of all 268 patients, 46 (17%) cases tested positive for OROV. The most common symptoms reported were headache with a frequency of 87% (n = 40) followed by myalgia with 76% (n = 35), arthralgia with 65.2% (n = 30), retro-ocular pain 60.8% (n = 28) and hyporexia with 50% (n = 23). Some patients showed a clinical presentation suggestive of severe OROV infection, of which 4.3% (n = 2) had low platelet count, 8.6% (n = 4) had intense abdominal pain, and 2.1% (n = 1) had a presentation with thoracic pain. CONCLUSION This study reports an outbreak of OROV in a region where this virus was not previously identified. The disease caused by OROV is an emerging, underdiagnosed infection that requires further research to determine its virulence, pathogenesis, host range and vectors involved in the urban and sylvatic cycles as well as identifying new genotypes to implement sensitive and specific diagnostic tools that can be applied to endemic regions.
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Affiliation(s)
- Wilmer Silva-Caso
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru; Centro de Salud Las Palmas, Red de Salud Leoncio Prado, Ministerio de Salud, Huanuco, Peru.
| | - Miguel Angel Aguilar-Luis
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru; Instituto de Investigación de Enfermedades Infecciosas, Lima, Peru; Instituto de Investigación Nutricional, Lima, Peru
| | - Carlos Palomares-Reyes
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Fernando Mazulis
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Claudia Weilg
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Luis J Del Valle
- Centre d'Enginyeria Biotecnologica i Molecular (CEBIM), Departament d'Enginyeria Quıímica, ETSEIB, Universidad Politécnica de Catalunya (UPC), Barcelona Tech, Spain
| | - Jaquelin Espejo-Evaristo
- Puesto de Salud Alto San Juan de Tulumayo, Red de Salud Leoncio Prado, Ministerio de Salud, Huanuco, Peru
| | - Fernando Soto-Febres
- Puesto de Salud Alto Pendencia, Red de Salud Leoncio Prado, Ministerio de Salud, Huanuco, Peru
| | - Johanna Martins-Luna
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Juana Del Valle-Mendoza
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru; Instituto de Investigación Nutricional, Lima, Peru.
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Silva-Caso W, Luis MA, Mazulis F, Palomares-Reyes C, Weilg C, Del Valle L, Espejo-Evaristo J, Soto-Febres F, Mendoza JDV. First outbreak of Oropouche Fever reported in a non-endemic central-western region of the Peruvian Amazon. Molecular diagnosis and clinical characteristics. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.3850] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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