RESUMEN
A total of 138 animals from 7 species (Apodemus agrarius, Bandicota indica, Crocidura suaveolens, Mus caroli, Mus formosanus, Rattus losea, and Suncus murinus) captured in Taichung, located in central Taiwan, and Kinmen Island, an island off the shore of China, were examined for the presence of Anaplasma phagocytophilum. The presence of the bacteria, which causes human granulocytic anaplasmosis, was examined by nested PCR targeting the16S rDNA. Twelve animals (8.7%) from M. caroli and R. losea, and 25 (18.1%) from A. agrarius, B. indica, M. caroli, and R. losea were infected with A. phagocytophilum and Anaplasma bovis, respectively. Phylogenetic analysis revealed that partial 16S rDNA sequences in the 12 aforementioned animals showed higher similarity to the sequences related to A. phagocytophilum detected in wild rodents (Rattus and Niviventer) from southeast China. The sequences of the other 25 animals belonged to the A. bovis clade. We demonstrated that small wild mammals were infected with A. phagocytophilum and A. bovis in Taichung and Kinmen Island, Taiwan.
Asunto(s)
Anaplasma phagocytophilum/aislamiento & purificación , Animales Salvajes/microbiología , Ehrlichiosis/veterinaria , Anaplasma phagocytophilum/clasificación , Anaplasma phagocytophilum/genética , Animales , Análisis por Conglomerados , ADN Bacteriano/química , ADN Bacteriano/genética , Ehrlichiosis/epidemiología , Ehrlichiosis/microbiología , Mamíferos , Datos de Secuencia Molecular , Filogenia , Reacción en Cadena de la Polimerasa , ARN Ribosómico 16S/genética , Análisis de Secuencia de ADN , Homología de Secuencia de Ácido Nucleico , Taiwán/epidemiologíaRESUMEN
We demonstrated the presence of the agent of human granulocytic anaplasmosis (HGA), Anaplasma phagocytophilum, and the agent of Lyme borreliosis, Borrelia burgdorferi sensu lato, in north-western Turkey. A total of 241 questing Ixodes ricinus adult ticks were sampled by flagging from recreational parks of the Asiatic and European sides of the heavily populated Istanbul metropolitan area and rural forests of Kirklareli located in the Thrace region in 2008. Both tick-borne pathogens were detected and identified by PCR and DNA sequencing analysis. A. phagocytophilum infection rates were 2.7% in Istanbul and 17.5% in the Kirklareli area. B. burgdorferi sensu lato infection rates were 38.7% in Istanbul and 11.4% in the Kirklareli area. Only 3 of 241 ticks were coinfected with A. phagocytophilum and B. burgdorferi sensu lato.
Asunto(s)
Anaplasma phagocytophilum/aislamiento & purificación , Vectores Arácnidos/microbiología , Borrelia burgdorferi/aislamiento & purificación , Ixodes/microbiología , Anaplasma phagocytophilum/genética , Animales , Borrelia burgdorferi/genética , Filogenia , ARN Ribosómico 16S/genética , TurquíaRESUMEN
This study was conducted to determine the prevalence and geographic distribution of Anaplasma phagocytophilum, the causative agent of human granulocytic anaplasmosis, in wild deer and boars in Japan. We analyzed the blood samples of the study animals using PCR-targeting the 16S rDNA followed by DNA sequencing. Wild deer infected with Anaplasma spp., including Anaplasma bovis and Anaplasma centrale were detected in the region from Hokkaido to Kyushu. The infection rates of A. phagocytophilum, A. bovis, and A. centrale in deer were 15.6, 21.9, and 37.5%, respectively, and the corresponding infection rates in wild boar were 3.6, 17.9, and 3.6%, respectively. However, p44/msp2 genes specific to A. phagocytophilum were not detected among the 16S rDNA-positive samples on PCR analysis. In addition, the 16S rDNA sequences of A. phagocytophilum were 100% similar to those detected previously in the deer in Japan and 98.6% similar to those of A. phagocytophilum detected in the United States and Europe, and from the tick, Ixodes ovatus and Ixodes persulcatus in Japan. These findings suggested that the A. phagocytophilum-related sequences detected from deer and wild boars in Japan were different from those of typical A. phagocytophilum strains.