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Scalp eschar and neck lymphadenopathy after tick bite: an emerging syndrome with multiple causes.
Dubourg, G; Socolovschi, C; Del Giudice, P; Fournier, P E; Raoult, D.
Afiliação
  • Dubourg G; Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes (URMITE; Research Unit on Infectious and Tropical Emerging Diseases) UM 63 CNRS 7278 IRD 198 INSERM U1095, Faculty of Medicine, Aix-Marseille University, Marseille, France.
Eur J Clin Microbiol Infect Dis ; 33(8): 1449-56, 2014 Aug.
Article em En | MEDLINE | ID: mdl-24682865
The clinical and epidemiological features of 56 patients with scalp eschar associated with neck lymphadenopathy after a tick bite (SENLAT) syndrome were evaluated at the National French Rickettsial Center. Eschar swabs, crusts, and biopsies as well as ticks and blood samples were acquired for molecular and serological assays. SENLAT predominantly affects children (p < 0.05), followed by 40- to 70-year-olds, and it is found mostly in women (p < 0.05). The seasonal distribution has two peaks: one in the spring (55%) and one in the autumn (30%). The etiological agent was identified in 18 cases, which include Rickettsia slovaca in 13 cases with incidences of two co-infections with Rickettsia raoultii and one case caused by Rickettsia sibirica mongolitimonae. Other possible agents that were found in attached ticks were Candidatus R. rioja, Coxiella burnetii, and Borrelia burgdorferi. The tick vector was Dermacentor marginatus in almost all cases, with the exception of one case, in which Ixodes ricinus was identified as the vector. Our findings show that SENLAT is a clinical entity characterized as a local infection controlled by the immune system and is neither pathogen- nor vector-specific.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Infecções por Rickettsia / Dermatoses do Couro Cabeludo / Doenças Transmitidas por Carrapatos / Picadas de Carrapatos / Doenças Linfáticas Tipo de estudo: Etiology_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Limite: Adolescent / Adult / Aged / Animals / Child / Child, preschool / Female / Humans / Male / Middle aged Idioma: En Ano de publicação: 2014 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Infecções por Rickettsia / Dermatoses do Couro Cabeludo / Doenças Transmitidas por Carrapatos / Picadas de Carrapatos / Doenças Linfáticas Tipo de estudo: Etiology_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Limite: Adolescent / Adult / Aged / Animals / Child / Child, preschool / Female / Humans / Male / Middle aged Idioma: En Ano de publicação: 2014 Tipo de documento: Article