| epidemiology of ovine theileriosis in ganan region, gansu province, china. | the epidemiology of ovine theilreiosis in gannan tibet autonomous region was investigated. the results of these studies indicate that this disease is endemic in the following counties of gannan where the vector tick was identified as haemaphysalis qighaiensis: luqu, xiahe, hezuo, zhuoni, lintan, diebu, maqu. the disease mainly occurred from march to may and some cases also occurred in september and october. the incidence rates in lambs of sheep brought from areas free of the disease were high. o ... | 2002 | 12051605 |
| ehrlichiae and ehrlichial diseases in china. | the various ticks collected from different areas of china were examined for the existence of ehrlichial agents by polymerase chain reaction (pcr) with genus- or species-specific primers designed on the basis of ehrlichial 16s rrna genes and sequence analyses. in southern china, e. chaffeensis was detected in amblyomma testudinarium ticks from infested cattle, haemaphysalis yeni ticks from hare, and ixodes ovatus ticks from muntiacus reevesi. e. canis was identified in rhipicephalus sanguineus ti ... | 2003 | 12860598 |
| detection of ehrlichial dna in haemaphysalis ticks recovered from dogs in japan that is closely related to a novel ehrlichia sp. found in cattle ticks from tibet, thailand, and africa. | tick dna samples from dogs in japan were examined for ehrlichia infection by 16s rrna gene-based pcr and sequencing. three positive samples were detected from haemaphysalis ticks, and higher levels of similarity (98.46 to 99.06%) were found to recently detected ehrlichia spp. from cattle ticks in tibet, thailand, and africa. | 2004 | 15004117 |