<tr><td>Kingdom:<td>Bacteria
<tr><td>Phylum:<td>Spirochaete
<tr><td>Class:<td>Schizomycetes
<tr><td>Order:<td>Spirochaetales
<tr><td>Family:<td>Spirochaetaceae
<tr><td>Genus:<td>Treponema
<tr><td>Species:<td>pallidum
</table>
<tr><th bgcolor=lightgrey>Binomial name
<tr><td align="center">Treponema pallidum
</table>
Treponema pallidum is a spirochaetebacterium.
There are at least three known subspecies, T. pallidum pallidum, which causes syphilis; T. pallidum pertenue, which causes yaws; and T. pallidum endemicum, which causes bejel.
In the July 17, 1998 issue of the journal Science, a group of biologists reported how they sequenced the genome of T. pallidum.