Caracterização de Rickettsia spp. circulante em foco silencioso de febre maculosa brasileira no Município de Caratinga, Minas Gerais, Brasil

Translated title of the contribution: Characterization of Rickettsia spp. circulating in a silent peri-urban focus for Brazilian spotted fever in Caratinga, Minas Gerais, Brazil

Luciane Daniele Cardoso, Renata Nascimento Freitas, Cláudio Lísias Mafra, Cristiane Vilas Boas Neves, Fátima Cristina Bacellar Figueira, Marcelo Bahia Labruna, Solange M. Gennari, David Walker, Márcio Antônio Moreira Galvão

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The present study was intended to characterize Rickettsia spp. circulating in arthropod vectors in Caratinga, Minas Gerais, Brazil, by PCR and to investigate the presence of antibodies against the spotted fever Rickettsiae group (SFRG) in dogs and horses. 2,610 arthropods were collected and taxonomically identified. DNA samples obtained from these vectors were submitted to PCR and cycle-sequenced. Ctenocephalides and Amblyomma cajennense showed sequences presenting 100.0% homology with R. felis. A sequence obtained from Rhipicephalus sanguineus showed 99.0% homology with R. felis, and a sequence from A. cajennense showed 97.0% homology with R. honei and R. rickettsii. Canine (73) and equine (18) serum samples were tested by indirect fluorescent antibody (IFA) using R. rickettsii antigen. Only three of the equine sera tested (17.0%) had positive antibody titers. Molecular detection of rickettsiae species potentially pathogenic to humans in arthropod vectors and the presence of seroreactivity to SFRG in horses show the risk of transmission of rickettsiosis in this area and the need to maintain continuous epidemiological surveillance for rickettsial diseases.

Original languageUndefined
Pages (from-to)495-501
Number of pages7
JournalCadernos de Saude Publica
Volume22
Issue number3
StatePublished - Mar 2006

Fingerprint

Rickettsia
Horses
Brazil
Fever
Arthropod Vectors
Felis
Antibodies
Ctenocephalides
Rhipicephalus sanguineus
Polymerase Chain Reaction
Arthropods
Serum
Canidae
Dogs
Antigens
DNA

Keywords

  • Arthropod Vectors
  • Rickettsia
  • Rickettsia Infectious
  • Spotted Fever

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health

Cite this

Cardoso, L. D., Freitas, R. N., Mafra, C. L., Neves, C. V. B., Bacellar Figueira, F. C., Labruna, M. B., ... Galvão, M. A. M. (2006). Caracterização de Rickettsia spp. circulante em foco silencioso de febre maculosa brasileira no Município de Caratinga, Minas Gerais, Brasil. Cadernos de Saude Publica, 22(3), 495-501.

Caracterização de Rickettsia spp. circulante em foco silencioso de febre maculosa brasileira no Município de Caratinga, Minas Gerais, Brasil. / Cardoso, Luciane Daniele; Freitas, Renata Nascimento; Mafra, Cláudio Lísias; Neves, Cristiane Vilas Boas; Bacellar Figueira, Fátima Cristina; Labruna, Marcelo Bahia; Gennari, Solange M.; Walker, David; Galvão, Márcio Antônio Moreira.

In: Cadernos de Saude Publica, Vol. 22, No. 3, 03.2006, p. 495-501.

Research output: Contribution to journalArticle

Cardoso, LD, Freitas, RN, Mafra, CL, Neves, CVB, Bacellar Figueira, FC, Labruna, MB, Gennari, SM, Walker, D & Galvão, MAM 2006, 'Caracterização de Rickettsia spp. circulante em foco silencioso de febre maculosa brasileira no Município de Caratinga, Minas Gerais, Brasil', Cadernos de Saude Publica, vol. 22, no. 3, pp. 495-501.
Cardoso LD, Freitas RN, Mafra CL, Neves CVB, Bacellar Figueira FC, Labruna MB et al. Caracterização de Rickettsia spp. circulante em foco silencioso de febre maculosa brasileira no Município de Caratinga, Minas Gerais, Brasil. Cadernos de Saude Publica. 2006 Mar;22(3):495-501.
Cardoso, Luciane Daniele ; Freitas, Renata Nascimento ; Mafra, Cláudio Lísias ; Neves, Cristiane Vilas Boas ; Bacellar Figueira, Fátima Cristina ; Labruna, Marcelo Bahia ; Gennari, Solange M. ; Walker, David ; Galvão, Márcio Antônio Moreira. / Caracterização de Rickettsia spp. circulante em foco silencioso de febre maculosa brasileira no Município de Caratinga, Minas Gerais, Brasil. In: Cadernos de Saude Publica. 2006 ; Vol. 22, No. 3. pp. 495-501.
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