Principal Bacterial STIs: <br />Syphilis
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The characteristic symptom of syphilis is the red pea sized bump, chancre, where the bacterium entered the body. A blood test is the most common way to determine is someone has syphilis. After the infections, the body will produce antibodies to the infection are detected. Also, the material from the chancre can be examined to test for syphilis. Syphilis is treated with antibiotics and is easy to cure in early stages. After treatment, one must abstain from sexual contact until syphilis sores are completely healed. However, someone infected with syphilis is also susceptible to reinfection.