Author: Miladin Kostovic

# fortbragg

- `Genus:............ Leptospira`
- `Species:.......... noguchii`
- `Serogroup:........ Autumnalis`
- `Serovar:.......... fortbragg`
- `Strain:........... Fort Bragg`
- `Year:............. 1952`
- `Origin:........... Human`
- `Country:.......... *`

### History of serovar:

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 pasages. The causal organism was belived to be a virus until Gochenour et al. (1952) recovered the leptospiral agent from the 259th. serial hamster passage. Preliminary srological 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 automnalis. it was therefore considered to be a 'subserotype' of L. autumnalis naymed fort-bragg. When the taxon 'subserotype' was abandoned in 1966 (TSC Moscow, 1966), the strain was quotedin the WHO list of 1967 as representing a separate serovar named fort-bragg.

In Dikken and Kmty's publication (1978) the serovar fortbragg is placed in the subgroup Fort-Braggi.

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