Fortbragg

Fortbragg Fort Bragg 1952

The strain was isolated by Tatlock in 1944 from the blood of an acutely ill patient (Alexander et al, 1954) which subsequently was maintained in various laboratories by serial animal passages. The causal organism was believed to be a virus until Gochenour et al. (1952) recovered the leptospiral agent from the 259th. serial hamster passage. Preliminary serological studies by these workers indicated that the strain named Fort Bragg was related to strain Akiyami A. Alexander et al. (1954) came to the conclusion that the strain Fort Bragg is the complete 'biotype' of serovar Autumnalis. It was therefore considered to be a 'subserotype' of L. autumnalis named fort-bragg. When the taxon 'subserotype' was abandoned in 1966 (TSC Moscow, 1966), the strain was quoted in the WHO list of 1967 as representing a separate serovar named fort-bragg.
In Dikken and Kmety's publication (1978) the serovar Fortbragg is placed in the subgroup Fort-Braggi.
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* Alexander A.D., Evans L.B., Jeffries H., Gleiser Ch.A., Yager R.H. Serologic characterization of the Fort Bragg leptospire. Proc. Soc. Exp. Biol./N.Y./ 86, 1954, 405-408.
* Gochenour J.E. Jr., Smadel J.E., Jackson E.B., Evans L.B., Yager R.H. Leptospiral Etiology of Fort Bragg fever. Publ. Hlth. Rep. 57, 1952, 811-813.
* TSC meeting, 1966: Statements and Recommendations. Int. J. Syst. Bacteriol. 21, 1971, 142-146.
* WHO: Current Problems in Leptospirosis Research. Wld. Hlth. Org. Tech. Rep. Ser. No. 380, Geneva 1967, p.32.
* Dikken H., Kmety E. Serological Typing Methods of Leptospires. Methods in Microbiol., vol. 11, 1978, 260-295.

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