Syphilis:- Definition:-A bacterial infection usually spread by sexually contact that spread with painless sore. Syphilis is a sexually transmitted infection (STI) that spreads when you have vaginal, anal or oral sex with someone who has the infection. A bacteria causes it. Antibiotic medication treats syphilis. Untreated syphilis can lead to serious health problems, including blindness and damage to your brain, heart, eyes and nervous system . Etiology:- The bacteria Treponema pallidum causes syphilis. An infected person spreads the bacteria through vaginal, anal or oral sex. The bacteria can enter your body through your anus, vagina, penis, mouth or broken skin. The bacteria continues to spread throughout your body, which can eventually damage certain organs. Can you get syphilis from kissing? Yes. While it’s rare to get syphilis from kissing, you can get syphilis by having direct contact with a syphilis sore. Transmission:- Have unprotected sex, especially if yo...