Detection and Identification of the Spotted Fever Group Rickettsial Agents from Haemaphysalis Ticks in Jeju Island, Korea
Journal of Bacteriology and Virology
; : 317-327, 2009.
Article
en Ko
| WPRIM
| ID: wpr-30838
Biblioteca responsable:
WPRO
ABSTRACT
This study investigated the presence of nucleic acids of various Rickettsial agents in ticks collected in Jeju Island, Korea from June 2007 to August 2008, through the nested polymerase chain reaction (PCR) and sequencing analysis of partial citrate synthase (gltA), Rickettsial outer membrane protein B (ompB), and 17-kDa genes. Examination of the 1,584 ticks showed that the subspecies distribution of Haemaphysalis longicornis was 99.81% (n=1,581) and H. flava was 0.19% (n=3). A total 224 out of 250 pools from one to 15 ticks were found to be positive in ompB-PCR assay (minimal infection rate 141 ticks/1,000 tested). From the positive samples, 26 were analyzed by gltA- and 17-kDa-PCR assays. The nucleotide sequences of the ompB- and gltA-PCR products showed a high degree of similarity with those of the Rickettsia japonica (98.7~99.2% and 98.7~99.3%, n=25) and R. monacensis (99% and 99.7%, n=1). However, analysis of the nucleotide sequences of the 17-kDa-PCR amplicons showed that the sequences of the 25 PCR amplicons were more close to R. marmionii (99.4~100%) than R. japonica (98.6~99.1%). These findings suggest that various rickettsial diseases could be transmitted via the bite of tick vectors in Jeju Island, Korea.
Palabras clave
Texto completo:
1
Índice:
WPRIM
Asunto principal:
Rickettsia
/
Garrapatas
/
Mordeduras y Picaduras
/
Ácidos Nucleicos
/
Secuencia de Bases
/
Receptores Fc
/
Reacción en Cadena de la Polimerasa
/
Citrato (si)-Sintasa
/
Fiebre
/
Corea (Geográfico)
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
País/Región como asunto:
Asia
Idioma:
Ko
Revista:
Journal of Bacteriology and Virology
Año:
2009
Tipo del documento:
Article