However, advances in genomic technology allowed researchers to isolate DNA from the bacterium Treponema pallidum, which causes syphilis, in pre-Columbian skeletons. Samples taken from skeletons ...

2) can appear 10 to 90 days after the causative Treponema pallidum spirochete (Fig. 3) invades, although the usual time to appearance is 21 to 35 days. Even untreated, the primary lesion on the ...

Caused by the bacterium Treponema pallidum, the contagious infection is usually spread by sexual activity but can also be passed on by kissing. Syphilis patients may develop sores on their ...

Of the patients, 67 percent are men. A patient develops syphilis after being infected with Treponema pallidum, a bacterium. The bacterium is transmissible through intercourse, kissing and other ...