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  • Title: Using PCR/RFLP to detect spotted fever group rickettsia in ticks and rodents collected in Ninghua, Fujian province.
    Author: Chen Z, Chen M, Zhong J, Bi D.
    Journal: Zhonghua Yu Fang Yi Xue Za Zhi; 2002 Mar; 36(2):106-8. PubMed ID: 12410964.
    Abstract:
    OBJECTIVE: To study the existence of natural foci of Spotted Fever in Ninghua, Fujian province. METHODS: Using DNA polymerase chain reaction and restriction endonuclease fragment length polymorphism analysis (PCR/RFLP) to detect spotted fever group rickettsiae (SFGR) in ticks and rodents. RESULTS: It was found that H. wellingtoni, H. yeni, and Dermacentor auratus were infected with Rickettsia sibirica; the DNA fragments were cloned, the PCR products from isolated strain NH-97 were antigenically and genotypically identical to Rickettsia sibirica. Rattus flavipectus were found infected with R. conorii. One of the sequeuce analysis showed that the DNA sequence was different from other SFGR and close to R. japanic. CONCLUSION: Natural foci of R. sibirica, R. sibrica, R. japanic and R.conorii are found in Ninghua, Fujian province of China.
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