Leptospira wolffii sp. nov., isolated from a human with suspected leptospirosis in Thailand.

Leptospira wolffii sp. nov., isolated from a human with suspected leptospirosis in Thailand. Research Abstract Details 

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Leptospira wolffii sp. nov., isolated from a human with suspected leptospirosis in Thailand. Abstract Text:

A single Leptospira strain (designated Khorat-H2(T)) was isolated from the urine of an adult male patient with suspected leptospirosis from the province of Nakornrachasima, Thailand. The isolate showed typical Leptospira motility and morphology under dark-field microscopy. Cells were 10-13 mum long and 0.2 mum in diameter, with a wavelength of 0.5 mum and an amplitude of approximately 0.3 mum. Phenotypically, strain Khorat-H2(T) did not grow at 13 degrees C but grew at 30 and 37 degrees C and in the presence of 8-azaguanine. Serological identification using the microscopic agglutination test revealed that strain Khorat-H2(T) had no cross-reaction with any recognized Leptospira serogroups. Phylogenetic analysis of the 16S rRNA gene sequence placed the novel strain within the radiation of the genus Leptospira, with sequence similarities of 88.1-97.7 % to recognized Leptospira species. DNA-DNA hybridization against the type strains of the three most closely related Leptospira species was used to confirm the results of the 16S rRNA sequence analysis. The G+C content of strain Khorat-H2(T) was 41.8 mol%. On the basis of phenotypic, serological and phylogenetic data, strain Khorat-H2(T) represents a novel species of the genus Leptospira, for which the name Leptospira wolffii sp. nov. is proposed. The type strain is Khorat-H2(T) (=WHO LT1686(T) =KIT Khorat-H2(T)).

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Leptospira wolffii sp. nov., isolated from a human with suspected leptospirosis in Thailand. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: International journal of systematic and evolutiona

VOLUME: 58

Page Numbers: 2305-8

Journal Abbreviation: Int. J. Syst. Evol. Microbiol.

ISSN: 1466-5026

DAY: 9

MONTH: Oct

YEAR: 2008

Leptospira wolffii sp. nov., isolated from a human with suspected leptospirosis in Thailand. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Leptospira wolffii sp. nov., isolated from a human with suspected leptospirosis in Thailand.

AFFILIATION: WHO/FAO/OIE Collaborating Centre for Reference and Research on Leptospirosis, Western Pacific Region, Communicable Diseases, Queensland Health Forensic and Scientific Services, Brisbane, Australia.

Country: England

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MEDLINETA: Int J Syst Evol Microbiol

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