Combined with the presence of genital ulcers, he calculates, the risk from a single encounter may be 15 percent or higher.

But 52 percent of uncircumsiced men with genital ulcers became infected.

In addition, the painless genital ulcers can be mistaken for syphilis.

Although women develop several small genital ulcers, and some suffer discomfort, many women do not realize they have chancroid.

Isolation of human immunodeficiency virus from genital ulcers in Nairobi prostitutes.

Most sexually active people with genital ulcers have herpes, syphilis, or chancroid.

The presence of other sexually transmitted diseases, such as genital ulcers, may increase the possibility of transmission.

The genital ulcers caused by syphilis create a break in the skin through which the virus can pass in or out more easily.

Type 1 usually causes mouth sores, previously it rarely caused genital ulcers but this has changed.

Risk of transmission increases in the presence of many sexually transmitted infections and genital ulcers.