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Mendes BFD, Moreira MM, Jimenez ALL, da Silva LB, Thiersch LMS, Rodrigues CM, Torres BR, da Costa JGD, Diniz LMO. Neurological manifestation of Brazilian spotted fever in childhood. Rev Inst Med Trop Sao Paulo 2024; 66:e16. [PMID: 38511805 PMCID: PMC10946421 DOI: 10.1590/s1678-9946202466016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 01/17/2024] [Indexed: 03/22/2024] Open
Abstract
Rocky Mountain Spotted Fever is a rickettsial disease caused by the bacteria Rickettsia rickettsii. In Brazil, the disease is known as Brazilian spotted fever (BSF), being the most significant tick-borne disease in the country. Among the affected patients, only 5% of cases occur in children aged one to nine years. Typical symptoms of the disease are fever, rash, headache and digestive symptoms. Neurological manifestations such as seizures, aphasia and hemiparesis have been described in few patients. This study aimed to describe the case of an infant diagnosed with BSF who presented severe signs of neurological manifestation.
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Affiliation(s)
- Bruna Fernanda Deicke Mendes
- Fundação Hospitalar do Estado de Minas Gerais, Hospital Infantil João Paulo II, Belo Horizonte, Minas Gerais, Brazil
| | - Marina Melo Moreira
- Fundação Hospitalar do Estado de Minas Gerais, Hospital Infantil João Paulo II, Belo Horizonte, Minas Gerais, Brazil
- Universidade Federal de Minas Gerais, Faculdade de Medicina, Belo Horizonte, Minas Gerais, Brazil
| | - Ana Luisa Lodi Jimenez
- Faculdade Ciências Médicas de Minas Gerais, Faculdade de Medicina, Belo Horizonte, Minas Gerais, Brazil
| | - Lívia Barbosa da Silva
- Fundação Hospitalar do Estado de Minas Gerais, Hospital Infantil João Paulo II, Belo Horizonte, Minas Gerais, Brazil
| | - Laura Maria Silva Thiersch
- Fundação Hospitalar do Estado de Minas Gerais, Hospital Infantil João Paulo II, Belo Horizonte, Minas Gerais, Brazil
| | - Carolina Malaquias Rodrigues
- Fundação Hospitalar do Estado de Minas Gerais, Hospital Infantil João Paulo II, Belo Horizonte, Minas Gerais, Brazil
| | - Bruna Ribeiro Torres
- Fundação Hospitalar do Estado de Minas Gerais, Hospital Infantil João Paulo II, Belo Horizonte, Minas Gerais, Brazil
- Faculdade Ciências Médicas de Minas Gerais, Faculdade de Medicina, Belo Horizonte, Minas Gerais, Brazil
| | - Juliana Goulart Dias da Costa
- Fundação Hospitalar do Estado de Minas Gerais, Hospital Infantil João Paulo II, Belo Horizonte, Minas Gerais, Brazil
| | - Lilian Martins Oliveira Diniz
- Fundação Hospitalar do Estado de Minas Gerais, Hospital Infantil João Paulo II, Belo Horizonte, Minas Gerais, Brazil
- Universidade Federal de Minas Gerais, Faculdade de Medicina, Belo Horizonte, Minas Gerais, Brazil
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Martins-Filho PR, Góes MADO, Sá SLCS, Teles RDCCC, Cavalcante TF, Carneiro MSDS, Bezerra GVB, Sena LOC, Moura KD, Teixeira DCP, Santos VS, Dos Santos CA. First autochthonous case of spotted fever in Sergipe State, Northeast Brazil. Travel Med Infect Dis 2023; 55:102640. [PMID: 37673130 DOI: 10.1016/j.tmaid.2023.102640] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 09/03/2023] [Indexed: 09/08/2023]
Affiliation(s)
| | - Marco Aurélio de Oliveira Góes
- Epidemiological Surveillance, State Health Department, Government of Sergipe State, Aracaju, SE, Brazil; Department of Medicine, Federal University of Sergipe, Lagarto, SE, Brazil
| | | | | | - Taise Ferreira Cavalcante
- Investigative Pathology Laboratory, Federal University of Sergipe, Aracaju, SE, Brazil; Epidemiological Surveillance, Municipal Health Department, Aracaju, SE, Brazil
| | | | | | | | - Karine Dantas Moura
- Central Laboratory of Public Health (LACEN/SE), Government of Sergipe State, Aracaju, SE, Brazil
| | | | | | - Cliomar Alves Dos Santos
- Central Laboratory of Public Health (LACEN/SE), Government of Sergipe State, Aracaju, SE, Brazil
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Vázquez-Guerrero E, Reyes-Solís GC, Cano-Ravell AE, Machain-Williams C, Leyva-Gastélum M, Estrada-de Los Santos P, Álvarez-Hernández G, Ibarra JA. Detection of Rickettsia amblyommatis and Rickettsia bellii in ticks collected from pet dogs in peri-urban and rural areas in Yucatan, Mexico. EXPERIMENTAL & APPLIED ACAROLOGY 2023:10.1007/s10493-023-00825-z. [PMID: 37498401 DOI: 10.1007/s10493-023-00825-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 07/11/2023] [Indexed: 07/28/2023]
Abstract
Rickettsia species are bacteria that may cause multiple diseases in animals and humans, via transmission through multiple arthropod vectors. Routine surveillance of Rickettsia spp. within vectors is critical to determine their presence and risk to mammalian hosts within human populations. Therefore, to better characterize the circulating Rickettsia species in an understudied region we targeted pet dogs to survey. Ticks were collected from pet dogs in three populations of the Yucatan where we tested for the presence of Rickettsia spp. by PCR in metagenomic DNA. In these ticks removed from pet dogs we detected Rickettsia amblyommatis and Rickettsia bellii in Amblyomma auriculatum, Amblyomma ovale and Amblyomma mixtum ticks obtained in a rural community in the Mexican state of Yucatan. This is the first report detecting both species for this state in Mexico, underpinning the importance of more routine surveillance.
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Affiliation(s)
- Edwin Vázquez-Guerrero
- Laboratorio de Genética Microbiana, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Guadalupe C Reyes-Solís
- Centro de Investigaciones Regionales Dr. Hideyo Noguchi, Universidad Autónoma de Yucatán, Mérida, Mexico.
| | - Alan E Cano-Ravell
- Centro de Investigaciones Regionales Dr. Hideyo Noguchi, Universidad Autónoma de Yucatán, Mérida, Mexico
| | - Carlos Machain-Williams
- Centro de Investigaciones Regionales Dr. Hideyo Noguchi, Universidad Autónoma de Yucatán, Mérida, Mexico
| | - Marcia Leyva-Gastélum
- Departamento de Medicina y Ciencias de la Salud, Universidad de Sonora, Sonora, Mexico
| | - Paulina Estrada-de Los Santos
- Laboratorio de Genética Microbiana, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | | | - J Antonio Ibarra
- Laboratorio de Genética Microbiana, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico.
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Poubel I, Cunha N, Fonseca A, Pinter A, Fonseca A, Cordeiro M, Almosny N. Seroprevalence of Rickettsia rickettsii and Rickettsia parkeri in dogs during a Brazilian Spotted Fever outbreak in the State of Rio de Janeiro. ARQ BRAS MED VET ZOO 2018. [DOI: 10.1590/1678-4162-9081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT The present paper is the first to perform this evaluation in dogs from the cities of Natividade, Porciuncula and Varre-Sai. The aim of this study is to search for Spotted Fever Group Rickettsia in canine sera using indirect immunofluorescence assay and to identify the probable causative agent of sera reactions in animals. Of the 253 sampled canines, 67.59% (171/253) were seroreactive for Rickettsia rickettsii and 11.07% (28/253) for Rickettsia parkeri, both in dilution 1:64. Titration of tested sera against R. rickettsii antigens reached 1:131.072 and, for R. parkeri, 1:4.096. We conclude that dogs are important sentinels for R. rickettsii infection, and can be infected regardless of sex, age, the habit of visiting woodlands or being in direct contact with equines and capybaras. Serological diagnosis has highlighted many dogs infected by R. rickettsii, and ambient conditions, such as the presence of flowing water bodies, was important for the occurrence of Brazilian Spotted Fever in the northwestern of Rio de Janeiro State.
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Affiliation(s)
| | | | | | - A. Pinter
- Superintendência de Controle de Endemias, Brazil
| | - A.H. Fonseca
- Universidade Federal Rural do Rio de Janeiro, Brazil
| | - M.D. Cordeiro
- Universidade Federal Rural do Rio de Janeiro, Brazil
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Alvarez-Hernandez G, Ernst K, Acuña-Melendrez NH, Vargas-Ortega AP, Candia-Plata MDC. Medical knowledge related to Rocky Mountain spotted fever in Sonora, Mexico. Trans R Soc Trop Med Hyg 2018; 112:109-114. [PMID: 29617892 DOI: 10.1093/trstmh/try030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 03/09/2018] [Indexed: 11/14/2022] Open
Abstract
Background Rocky Mountain spotted fever (RMSF) is a tick-borne disease with a high case-fatality rate unless diagnosed promptly and treated timely with doxycycline. Physician knowledge about presentation and treatment can improve outcomes of RMSF in endemic regions, such as Sonora in northern Mexico, where RMSF has caused 1348 non-fatal cases and 247 deaths from 2003 to 2016. Methods A cross-sectional study was conducted with 343 physicians working in medical facilities in Sonora, Mexico. A 25-item questionnaire explored physician knowledge of clinical, epidemiological and preventive aspects of RMSF. Results Only 62% of physicians agreed that doxycycline should be used as the first choice treatment for children under 8 years with suspected RMSF. Additionally, 40% of primary care physicians correctly identified the time to initiate doxycycline, and 32% correctly identified the case-fatality rate of untreated RMSF in all patients. Conclusions Inadequate medical knowledge may adversely affect how patients infected with Rickettsia rickettsii are diagnosed and treated. Educational programs that improve the risk perception and medical knowledge about RMSF should be targeted at physicians most likely to have initial contact with diseased patients.
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Affiliation(s)
- Gerardo Alvarez-Hernandez
- Department of Medicine and Health Sciences, University of Sonora, Mexico; Hermosillo, Sonora, México, C.P. 83000
| | - Kacey Ernst
- Epidemiology and Biostatistics Department, Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, Arizona, United States 85724
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