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Antibodies for Rickettsia spp. in patients with negative serology for dengue virus, leptospirosis, and meningococcal disease in municipalities of São Paulo State, Brazil
Prata, Juliana Anacleto Cabral; Souza, Celso Eduardo de; Angerami, Rodrigo Nogueira; Barbosa, Taíse Marongio Cotrim de Moraes; Santos, Fabiana Cristina Pereira dos; Colombo, Silvia; Guercio, Vânia Martins Fontes Del; Donalísio, Maria Rita.
  • Prata, Juliana Anacleto Cabral; Universidade Estadual de Campinas. Faculdade de Ciências Médicas. Programa de Pós-Graduação Stricto Sensu Saúde Coletiva-Epidemiologia. Campinas. BR
  • Souza, Celso Eduardo de; Universidade Estadual de Campinas. Faculdade de Ciências Médicas. Programa de Pós-Graduação Stricto Sensu Saúde Coletiva-Epidemiologia. Campinas. BR
  • Angerami, Rodrigo Nogueira; Universidade Estadual de Campinas. Faculdade de Ciências Médicas. Programa de Pós-Graduação Stricto Sensu Saúde Coletiva-Epidemiologia. Campinas. BR
  • Barbosa, Taíse Marongio Cotrim de Moraes; Universidade Estadual de Campinas. Faculdade de Ciências Médicas. Programa de Pós-Graduação Stricto Sensu Saúde Coletiva-Epidemiologia. Campinas. BR
  • Santos, Fabiana Cristina Pereira dos; Universidade Estadual de Campinas. Faculdade de Ciências Médicas. Programa de Pós-Graduação Stricto Sensu Saúde Coletiva-Epidemiologia. Campinas. BR
  • Colombo, Silvia; Universidade Estadual de Campinas. Faculdade de Ciências Médicas. Programa de Pós-Graduação Stricto Sensu Saúde Coletiva-Epidemiologia. Campinas. BR
  • Guercio, Vânia Martins Fontes Del; Universidade Estadual de Campinas. Faculdade de Ciências Médicas. Programa de Pós-Graduação Stricto Sensu Saúde Coletiva-Epidemiologia. Campinas. BR
  • Donalísio, Maria Rita; Universidade Estadual de Campinas. Faculdade de Ciências Médicas. Programa de Pós-Graduação Stricto Sensu Saúde Coletiva-Epidemiologia. Campinas. BR
Rev. Soc. Bras. Med. Trop ; 49(5): 567-571, Sept.-Oct. 2016. tab
Article in English | LILACS, SES-SP | ID: lil-798124
ABSTRACT
Abstract INTRODUCTION Brazilian spotted fever is an infectious disease with a high mortality rate if not treated early. Differential diagnosis is difficult, as the first clinical signs are non-specific and can be confused with other diseases. The aim of the study was to investigate evidence of infection with Rickettsia rickettsii and Rickettsia parkeri in negative sera samples, collected in 2014, from patients with suspected leptospirosis, dengue fever, and meningococcal disease in Atibaia and Bragança Paulista municipalities of the State of São Paulo. METHODS The samples stored at the Institute Adolfo Lutz in Campinas were tested using an indirect immunofluorescence assay (IFA) with IgG and IgM against R. rickettsii and R. parkeri. Real-time polymerase chain reaction (PCR) testing was performed for the sera samples of patients who died (n = 3), those with initial suspicion of meningococcal disease (n = 6), and those with positive IFA results. RESULTS Of 258 samples from Bragança Paulista, 4 (1.6%) were positive, with IgG titers of 164 and 1128 against R. rickettsii and R. parkeri, respectively. Of 155 samples from Atibaia, 2 (1.3%) were positive, with IgG titers of 164 and 1128 against R. rickettsii and R. parkeri, respectively. No sample showed positive PCR results. CONCLUSIONS This serological investigation suggests there is evidence of exposure to Rickettsia spp. in residents of areas that have environmental conditions favorable to the spread of bacteria, in which Brazilian spotted fever incidence was not previously confirmed.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Rickettsia / Rickettsia Infections / Immunoglobulin G / Immunoglobulin M / Antibodies, Bacterial Type of study: Diagnostic study / Prevalence study / Risk factors Limits: Adult / Female / Humans / Male Country/Region as subject: South America / Brazil Language: English Journal: Rev. Soc. Bras. Med. Trop Year: 2016 Type: Article Institution/Affiliation country: Universidade Estadual de Campinas/BR

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Full text: Available Index: LILACS (Americas) Main subject: Rickettsia / Rickettsia Infections / Immunoglobulin G / Immunoglobulin M / Antibodies, Bacterial Type of study: Diagnostic study / Prevalence study / Risk factors Limits: Adult / Female / Humans / Male Country/Region as subject: South America / Brazil Language: English Journal: Rev. Soc. Bras. Med. Trop Year: 2016 Type: Article Institution/Affiliation country: Universidade Estadual de Campinas/BR