Syphilis is a sexually transmitted infectious disease (STD) caused by infection with Treponema pallidum, a pathogenic gram negative bacteria in the genus Treponema. When syphilis is present, symptoms are usually expressed in early stages, early symptoms include a chancre that persists for 2–6 weeks…. Read More »


Gonorrhea (gonorrhoea, гонорея) is a sexually transmitted infectious disease (STI) caused by infection with Neisseria gonorrhoeae or gonococcus, a pathogenic gram negative bacteria in the genus Neisseria…. Read More »


Chlamydia (хламидиоз) is a sexually transmitted bacterial infectious disease (STI) caused by infection with Chlamydia trachomatis, a pathogenic gram negative bacteria in the genus Chlamydia. … Read More »


Urethritis (уретрит) is a medical term used to describe a condition in which the the urethra or the fibromuscular tube that carries urine from the bladder to outside the body is inflamed or irritated due to bacterial or viral infection…. Read More »


AIDS or acquired immunodeficiency syndrome is the final and most severe stage of HIV infection characterized by decreased CD4 count (lymphocytes)…. Read More »


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